Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1 | //===--- ParseDecl.cpp - Declaration Parsing ------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Chris Lattner | 0bc735f | 2007-12-29 19:59:25 +0000 | [diff] [blame] | 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements the Declaration portions of the Parser interfaces. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "clang/Parse/Parser.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 15 | #include "RAIIObjectsForParser.h" |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 16 | #include "clang/AST/ASTContext.h" |
Larisse Voufo | 7c64ef0 | 2013-06-21 00:08:46 +0000 | [diff] [blame] | 17 | #include "clang/AST/DeclTemplate.h" |
Benjamin Kramer | 9852f58 | 2012-12-01 16:35:25 +0000 | [diff] [blame] | 18 | #include "clang/Basic/AddressSpaces.h" |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 19 | #include "clang/Basic/Attributes.h" |
Jordan Rose | 3f6f51e | 2013-02-08 22:30:41 +0000 | [diff] [blame] | 20 | #include "clang/Basic/CharInfo.h" |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 21 | #include "clang/Basic/TargetInfo.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 22 | #include "clang/Parse/ParseDiagnostic.h" |
Kaelyn Uhrain | aec2ac6 | 2012-04-26 23:36:17 +0000 | [diff] [blame] | 23 | #include "clang/Sema/Lookup.h" |
John McCall | 1951085 | 2010-08-20 18:27:03 +0000 | [diff] [blame] | 24 | #include "clang/Sema/ParsedTemplate.h" |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 25 | #include "clang/Sema/PrettyDeclStackTrace.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 26 | #include "clang/Sema/Scope.h" |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 27 | #include "llvm/ADT/SmallSet.h" |
Benjamin Kramer | 8fe83e1 | 2012-02-04 13:45:25 +0000 | [diff] [blame] | 28 | #include "llvm/ADT/SmallString.h" |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 29 | #include "llvm/ADT/StringSwitch.h" |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 30 | using namespace clang; |
| 31 | |
| 32 | //===----------------------------------------------------------------------===// |
| 33 | // C99 6.7: Declarations. |
| 34 | //===----------------------------------------------------------------------===// |
| 35 | |
| 36 | /// ParseTypeName |
| 37 | /// type-name: [C99 6.7.6] |
| 38 | /// specifier-qualifier-list abstract-declarator[opt] |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 39 | /// |
| 40 | /// Called type-id in C++. |
Douglas Gregor | 683a81f | 2011-01-31 16:09:46 +0000 | [diff] [blame] | 41 | TypeResult Parser::ParseTypeName(SourceRange *Range, |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 42 | Declarator::TheContext Context, |
Richard Smith | c89edf5 | 2011-07-01 19:46:12 +0000 | [diff] [blame] | 43 | AccessSpecifier AS, |
Richard Smith | 6b3d3e5 | 2013-02-20 19:22:51 +0000 | [diff] [blame] | 44 | Decl **OwnedType, |
| 45 | ParsedAttributes *Attrs) { |
Richard Smith | 6d96d3a | 2012-03-15 01:02:11 +0000 | [diff] [blame] | 46 | DeclSpecContext DSC = getDeclSpecContextFromDeclaratorContext(Context); |
Richard Smith | a971d24 | 2012-05-09 20:55:26 +0000 | [diff] [blame] | 47 | if (DSC == DSC_normal) |
| 48 | DSC = DSC_type_specifier; |
Richard Smith | 7796eb5 | 2012-03-12 08:56:40 +0000 | [diff] [blame] | 49 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 50 | // Parse the common declaration-specifiers piece. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 51 | DeclSpec DS(AttrFactory); |
Richard Smith | 6b3d3e5 | 2013-02-20 19:22:51 +0000 | [diff] [blame] | 52 | if (Attrs) |
| 53 | DS.addAttributes(Attrs->getList()); |
Richard Smith | 7796eb5 | 2012-03-12 08:56:40 +0000 | [diff] [blame] | 54 | ParseSpecifierQualifierList(DS, AS, DSC); |
Richard Smith | c89edf5 | 2011-07-01 19:46:12 +0000 | [diff] [blame] | 55 | if (OwnedType) |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 56 | *OwnedType = DS.isTypeSpecOwned() ? DS.getRepAsDecl() : nullptr; |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 57 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 58 | // Parse the abstract-declarator, if present. |
Douglas Gregor | 683a81f | 2011-01-31 16:09:46 +0000 | [diff] [blame] | 59 | Declarator DeclaratorInfo(DS, Context); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 60 | ParseDeclarator(DeclaratorInfo); |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 61 | if (Range) |
| 62 | *Range = DeclaratorInfo.getSourceRange(); |
| 63 | |
Chris Lattner | eaaebc7 | 2009-04-25 08:06:05 +0000 | [diff] [blame] | 64 | if (DeclaratorInfo.isInvalidType()) |
Douglas Gregor | 809070a | 2009-02-18 17:45:20 +0000 | [diff] [blame] | 65 | return true; |
| 66 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 67 | return Actions.ActOnTypeName(getCurScope(), DeclaratorInfo); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 68 | } |
| 69 | |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 70 | |
| 71 | /// isAttributeLateParsed - Return true if the attribute has arguments that |
| 72 | /// require late parsing. |
| 73 | static bool isAttributeLateParsed(const IdentifierInfo &II) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 74 | #define CLANG_ATTR_LATE_PARSED_LIST |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 75 | return llvm::StringSwitch<bool>(II.getName()) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 76 | #include "clang/Parse/AttrParserStringSwitches.inc" |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 77 | .Default(false); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 78 | #undef CLANG_ATTR_LATE_PARSED_LIST |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 79 | } |
| 80 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 81 | /// ParseGNUAttributes - Parse a non-empty attributes list. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 82 | /// |
| 83 | /// [GNU] attributes: |
| 84 | /// attribute |
| 85 | /// attributes attribute |
| 86 | /// |
| 87 | /// [GNU] attribute: |
| 88 | /// '__attribute__' '(' '(' attribute-list ')' ')' |
| 89 | /// |
| 90 | /// [GNU] attribute-list: |
| 91 | /// attrib |
| 92 | /// attribute_list ',' attrib |
| 93 | /// |
| 94 | /// [GNU] attrib: |
| 95 | /// empty |
| 96 | /// attrib-name |
| 97 | /// attrib-name '(' identifier ')' |
| 98 | /// attrib-name '(' identifier ',' nonempty-expr-list ')' |
| 99 | /// attrib-name '(' argument-expression-list [C99 6.5.2] ')' |
| 100 | /// |
| 101 | /// [GNU] attrib-name: |
| 102 | /// identifier |
| 103 | /// typespec |
| 104 | /// typequal |
| 105 | /// storageclass |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 106 | /// |
Richard Smith | 4c6c411 | 2013-09-03 18:57:36 +0000 | [diff] [blame] | 107 | /// Whether an attribute takes an 'identifier' is determined by the |
| 108 | /// attrib-name. GCC's behavior here is not worth imitating: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 109 | /// |
Richard Smith | 4c6c411 | 2013-09-03 18:57:36 +0000 | [diff] [blame] | 110 | /// * In C mode, if the attribute argument list starts with an identifier |
| 111 | /// followed by a ',' or an ')', and the identifier doesn't resolve to |
| 112 | /// a type, it is parsed as an identifier. If the attribute actually |
| 113 | /// wanted an expression, it's out of luck (but it turns out that no |
| 114 | /// attributes work that way, because C constant expressions are very |
| 115 | /// limited). |
| 116 | /// * In C++ mode, if the attribute argument list starts with an identifier, |
| 117 | /// and the attribute *wants* an identifier, it is parsed as an identifier. |
| 118 | /// At block scope, any additional tokens between the identifier and the |
| 119 | /// ',' or ')' are ignored, otherwise they produce a parse error. |
Richard Smith | fe0a0fb | 2011-10-17 21:20:17 +0000 | [diff] [blame] | 120 | /// |
Richard Smith | 4c6c411 | 2013-09-03 18:57:36 +0000 | [diff] [blame] | 121 | /// We follow the C++ model, but don't allow junk after the identifier. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 122 | void Parser::ParseGNUAttributes(ParsedAttributes &attrs, |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 123 | SourceLocation *endLoc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 124 | LateParsedAttrList *LateAttrs, |
| 125 | Declarator *D) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 126 | assert(Tok.is(tok::kw___attribute) && "Not a GNU attribute list!"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 127 | |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 128 | while (Tok.is(tok::kw___attribute)) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 129 | ConsumeToken(); |
| 130 | if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, |
| 131 | "attribute")) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 132 | SkipUntil(tok::r_paren, StopAtSemi); // skip until ) or ; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 133 | return; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 134 | } |
| 135 | if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, "(")) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 136 | SkipUntil(tok::r_paren, StopAtSemi); // skip until ) or ; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 137 | return; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 138 | } |
| 139 | // Parse the attribute-list. e.g. __attribute__(( weak, alias("__f") )) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 140 | while (true) { |
| 141 | // Allow empty/non-empty attributes. ((__vector_size__(16),,,,)) |
| 142 | if (TryConsumeToken(tok::comma)) |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 143 | continue; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 144 | |
| 145 | // Expect an identifier or declaration specifier (const, int, etc.) |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 146 | if (Tok.isAnnotation()) |
| 147 | break; |
| 148 | IdentifierInfo *AttrName = Tok.getIdentifierInfo(); |
| 149 | if (!AttrName) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 150 | break; |
| 151 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 152 | SourceLocation AttrNameLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 153 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 154 | if (Tok.isNot(tok::l_paren)) { |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 155 | attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0, |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 156 | AttributeList::AS_GNU); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 157 | continue; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 158 | } |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 159 | |
| 160 | // Handle "parameterized" attributes |
| 161 | if (!LateAttrs || !isAttributeLateParsed(*AttrName)) { |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 162 | ParseGNUAttributeArgs(AttrName, AttrNameLoc, attrs, endLoc, nullptr, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 163 | SourceLocation(), AttributeList::AS_GNU, D); |
| 164 | continue; |
| 165 | } |
| 166 | |
| 167 | // Handle attributes with arguments that require late parsing. |
| 168 | LateParsedAttribute *LA = |
| 169 | new LateParsedAttribute(this, *AttrName, AttrNameLoc); |
| 170 | LateAttrs->push_back(LA); |
| 171 | |
| 172 | // Attributes in a class are parsed at the end of the class, along |
| 173 | // with other late-parsed declarations. |
| 174 | if (!ClassStack.empty() && !LateAttrs->parseSoon()) |
| 175 | getCurrentClass().LateParsedDeclarations.push_back(LA); |
| 176 | |
| 177 | // consume everything up to and including the matching right parens |
| 178 | ConsumeAndStoreUntil(tok::r_paren, LA->Toks, true, false); |
| 179 | |
| 180 | Token Eof; |
| 181 | Eof.startToken(); |
| 182 | Eof.setLocation(Tok.getLocation()); |
| 183 | LA->Toks.push_back(Eof); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 184 | } |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 185 | |
| 186 | if (ExpectAndConsume(tok::r_paren)) |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 187 | SkipUntil(tok::r_paren, StopAtSemi); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 188 | SourceLocation Loc = Tok.getLocation(); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 189 | if (ExpectAndConsume(tok::r_paren)) |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 190 | SkipUntil(tok::r_paren, StopAtSemi); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 191 | if (endLoc) |
| 192 | *endLoc = Loc; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 193 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 194 | } |
| 195 | |
Aaron Ballman | 9feedb8 | 2013-11-04 12:55:56 +0000 | [diff] [blame] | 196 | /// \brief Normalizes an attribute name by dropping prefixed and suffixed __. |
| 197 | static StringRef normalizeAttrName(StringRef Name) { |
Richard Smith | d92aa2d | 2013-10-24 01:07:54 +0000 | [diff] [blame] | 198 | if (Name.size() >= 4 && Name.startswith("__") && Name.endswith("__")) |
| 199 | Name = Name.drop_front(2).drop_back(2); |
Aaron Ballman | 9feedb8 | 2013-11-04 12:55:56 +0000 | [diff] [blame] | 200 | return Name; |
| 201 | } |
| 202 | |
| 203 | /// \brief Determine whether the given attribute has an identifier argument. |
| 204 | static bool attributeHasIdentifierArg(const IdentifierInfo &II) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 205 | #define CLANG_ATTR_IDENTIFIER_ARG_LIST |
Aaron Ballman | 9feedb8 | 2013-11-04 12:55:56 +0000 | [diff] [blame] | 206 | return llvm::StringSwitch<bool>(normalizeAttrName(II.getName())) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 207 | #include "clang/Parse/AttrParserStringSwitches.inc" |
Douglas Gregor | 92eb7d8 | 2013-05-02 23:25:32 +0000 | [diff] [blame] | 208 | .Default(false); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 209 | #undef CLANG_ATTR_IDENTIFIER_ARG_LIST |
Douglas Gregor | 92eb7d8 | 2013-05-02 23:25:32 +0000 | [diff] [blame] | 210 | } |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 211 | |
Aaron Ballman | 9feedb8 | 2013-11-04 12:55:56 +0000 | [diff] [blame] | 212 | /// \brief Determine whether the given attribute parses a type argument. |
| 213 | static bool attributeIsTypeArgAttr(const IdentifierInfo &II) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 214 | #define CLANG_ATTR_TYPE_ARG_LIST |
Aaron Ballman | 9feedb8 | 2013-11-04 12:55:56 +0000 | [diff] [blame] | 215 | return llvm::StringSwitch<bool>(normalizeAttrName(II.getName())) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 216 | #include "clang/Parse/AttrParserStringSwitches.inc" |
Aaron Ballman | 9feedb8 | 2013-11-04 12:55:56 +0000 | [diff] [blame] | 217 | .Default(false); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 218 | #undef CLANG_ATTR_TYPE_ARG_LIST |
| 219 | } |
| 220 | |
| 221 | /// \brief Determine whether the given attribute requires parsing its arguments |
| 222 | /// in an unevaluated context or not. |
| 223 | static bool attributeParsedArgsUnevaluated(const IdentifierInfo &II) { |
| 224 | #define CLANG_ATTR_ARG_CONTEXT_LIST |
| 225 | return llvm::StringSwitch<bool>(normalizeAttrName(II.getName())) |
| 226 | #include "clang/Parse/AttrParserStringSwitches.inc" |
| 227 | .Default(false); |
| 228 | #undef CLANG_ATTR_ARG_CONTEXT_LIST |
Aaron Ballman | 9feedb8 | 2013-11-04 12:55:56 +0000 | [diff] [blame] | 229 | } |
| 230 | |
Richard Smith | 8edabd9 | 2013-09-03 18:01:40 +0000 | [diff] [blame] | 231 | IdentifierLoc *Parser::ParseIdentifierLoc() { |
| 232 | assert(Tok.is(tok::identifier) && "expected an identifier"); |
| 233 | IdentifierLoc *IL = IdentifierLoc::create(Actions.Context, |
| 234 | Tok.getLocation(), |
| 235 | Tok.getIdentifierInfo()); |
| 236 | ConsumeToken(); |
| 237 | return IL; |
| 238 | } |
| 239 | |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 240 | void Parser::ParseAttributeWithTypeArg(IdentifierInfo &AttrName, |
| 241 | SourceLocation AttrNameLoc, |
| 242 | ParsedAttributes &Attrs, |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 243 | SourceLocation *EndLoc, |
| 244 | IdentifierInfo *ScopeName, |
| 245 | SourceLocation ScopeLoc, |
| 246 | AttributeList::Syntax Syntax) { |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 247 | BalancedDelimiterTracker Parens(*this, tok::l_paren); |
| 248 | Parens.consumeOpen(); |
| 249 | |
| 250 | TypeResult T; |
| 251 | if (Tok.isNot(tok::r_paren)) |
| 252 | T = ParseTypeName(); |
| 253 | |
| 254 | if (Parens.consumeClose()) |
| 255 | return; |
| 256 | |
| 257 | if (T.isInvalid()) |
| 258 | return; |
| 259 | |
| 260 | if (T.isUsable()) |
| 261 | Attrs.addNewTypeAttr(&AttrName, |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 262 | SourceRange(AttrNameLoc, Parens.getCloseLocation()), |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 263 | ScopeName, ScopeLoc, T.get(), Syntax); |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 264 | else |
| 265 | Attrs.addNew(&AttrName, SourceRange(AttrNameLoc, Parens.getCloseLocation()), |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 266 | ScopeName, ScopeLoc, nullptr, 0, Syntax); |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 267 | } |
| 268 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 269 | unsigned Parser::ParseAttributeArgsCommon( |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 270 | IdentifierInfo *AttrName, SourceLocation AttrNameLoc, |
| 271 | ParsedAttributes &Attrs, SourceLocation *EndLoc, IdentifierInfo *ScopeName, |
| 272 | SourceLocation ScopeLoc, AttributeList::Syntax Syntax) { |
Richard Smith | d92aa2d | 2013-10-24 01:07:54 +0000 | [diff] [blame] | 273 | // Ignore the left paren location for now. |
| 274 | ConsumeParen(); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 275 | |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 276 | ArgsVector ArgExprs; |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 277 | if (Tok.is(tok::identifier)) { |
Richard Smith | d92aa2d | 2013-10-24 01:07:54 +0000 | [diff] [blame] | 278 | // If this attribute wants an 'identifier' argument, make it so. |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 279 | bool IsIdentifierArg = attributeHasIdentifierArg(*AttrName); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 280 | AttributeList::Kind AttrKind = |
| 281 | AttributeList::getKind(AttrName, ScopeName, Syntax); |
Richard Smith | d92aa2d | 2013-10-24 01:07:54 +0000 | [diff] [blame] | 282 | |
| 283 | // If we don't know how to parse this attribute, but this is the only |
| 284 | // token in this argument, assume it's meant to be an identifier. |
Bill Wendling | 307c92e | 2013-12-05 18:35:37 +0000 | [diff] [blame] | 285 | if (AttrKind == AttributeList::UnknownAttribute || |
| 286 | AttrKind == AttributeList::IgnoredAttribute) { |
Richard Smith | d92aa2d | 2013-10-24 01:07:54 +0000 | [diff] [blame] | 287 | const Token &Next = NextToken(); |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 288 | IsIdentifierArg = Next.is(tok::r_paren) || Next.is(tok::comma); |
Richard Smith | d92aa2d | 2013-10-24 01:07:54 +0000 | [diff] [blame] | 289 | } |
Richard Smith | fe0a0fb | 2011-10-17 21:20:17 +0000 | [diff] [blame] | 290 | |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 291 | if (IsIdentifierArg) |
| 292 | ArgExprs.push_back(ParseIdentifierLoc()); |
Richard Smith | fe0a0fb | 2011-10-17 21:20:17 +0000 | [diff] [blame] | 293 | } |
| 294 | |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 295 | if (!ArgExprs.empty() ? Tok.is(tok::comma) : Tok.isNot(tok::r_paren)) { |
Richard Smith | fe0a0fb | 2011-10-17 21:20:17 +0000 | [diff] [blame] | 296 | // Eat the comma. |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 297 | if (!ArgExprs.empty()) |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 298 | ConsumeToken(); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 299 | |
Richard Smith | fe0a0fb | 2011-10-17 21:20:17 +0000 | [diff] [blame] | 300 | // Parse the non-empty comma-separated list of expressions. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 301 | do { |
| 302 | std::unique_ptr<EnterExpressionEvaluationContext> Unevaluated; |
| 303 | if (attributeParsedArgsUnevaluated(*AttrName)) |
| 304 | Unevaluated.reset( |
| 305 | new EnterExpressionEvaluationContext(Actions, Sema::Unevaluated)); |
| 306 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 307 | ExprResult ArgExpr( |
| 308 | Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression())); |
Richard Smith | fe0a0fb | 2011-10-17 21:20:17 +0000 | [diff] [blame] | 309 | if (ArgExpr.isInvalid()) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 310 | SkipUntil(tok::r_paren, StopAtSemi); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 311 | return 0; |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 312 | } |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 313 | ArgExprs.push_back(ArgExpr.get()); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 314 | // Eat the comma, move to the next argument |
| 315 | } while (TryConsumeToken(tok::comma)); |
Fariborz Jahanian | 7a81e41 | 2011-10-18 17:11:10 +0000 | [diff] [blame] | 316 | } |
Richard Smith | fe0a0fb | 2011-10-17 21:20:17 +0000 | [diff] [blame] | 317 | |
| 318 | SourceLocation RParen = Tok.getLocation(); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 319 | if (!ExpectAndConsume(tok::r_paren)) { |
Michael Han | 45bed13 | 2012-10-04 16:42:52 +0000 | [diff] [blame] | 320 | SourceLocation AttrLoc = ScopeLoc.isValid() ? ScopeLoc : AttrNameLoc; |
Richard Smith | d386fef | 2013-10-31 01:56:18 +0000 | [diff] [blame] | 321 | Attrs.addNew(AttrName, SourceRange(AttrLoc, RParen), ScopeName, ScopeLoc, |
| 322 | ArgExprs.data(), ArgExprs.size(), Syntax); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 323 | } |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 324 | |
| 325 | if (EndLoc) |
| 326 | *EndLoc = RParen; |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 327 | |
| 328 | return static_cast<unsigned>(ArgExprs.size()); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 329 | } |
| 330 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 331 | /// Parse the arguments to a parameterized GNU attribute or |
| 332 | /// a C++11 attribute in "gnu" namespace. |
| 333 | void Parser::ParseGNUAttributeArgs(IdentifierInfo *AttrName, |
| 334 | SourceLocation AttrNameLoc, |
| 335 | ParsedAttributes &Attrs, |
| 336 | SourceLocation *EndLoc, |
| 337 | IdentifierInfo *ScopeName, |
| 338 | SourceLocation ScopeLoc, |
| 339 | AttributeList::Syntax Syntax, |
| 340 | Declarator *D) { |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 341 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 342 | assert(Tok.is(tok::l_paren) && "Attribute arg list not starting with '('"); |
| 343 | |
| 344 | AttributeList::Kind AttrKind = |
| 345 | AttributeList::getKind(AttrName, ScopeName, Syntax); |
| 346 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 347 | if (AttrKind == AttributeList::AT_Availability) { |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 348 | ParseAvailabilityAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc, ScopeName, |
| 349 | ScopeLoc, Syntax); |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 350 | return; |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 351 | } else if (AttrKind == AttributeList::AT_ObjCBridgeRelated) { |
| 352 | ParseObjCBridgeRelatedAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc, |
| 353 | ScopeName, ScopeLoc, Syntax); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 354 | return; |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 355 | } else if (AttrKind == AttributeList::AT_TypeTagForDatatype) { |
| 356 | ParseTypeTagForDatatypeAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc, |
| 357 | ScopeName, ScopeLoc, Syntax); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 358 | return; |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 359 | } else if (attributeIsTypeArgAttr(*AttrName)) { |
| 360 | ParseAttributeWithTypeArg(*AttrName, AttrNameLoc, Attrs, EndLoc, ScopeName, |
| 361 | ScopeLoc, Syntax); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 362 | return; |
| 363 | } |
| 364 | |
| 365 | // These may refer to the function arguments, but need to be parsed early to |
| 366 | // participate in determining whether it's a redeclaration. |
| 367 | std::unique_ptr<ParseScope> PrototypeScope; |
| 368 | if (AttrName->isStr("enable_if") && D && D->isFunctionDeclarator()) { |
| 369 | DeclaratorChunk::FunctionTypeInfo FTI = D->getFunctionTypeInfo(); |
| 370 | PrototypeScope.reset(new ParseScope(this, Scope::FunctionPrototypeScope | |
| 371 | Scope::FunctionDeclarationScope | |
| 372 | Scope::DeclScope)); |
| 373 | for (unsigned i = 0; i != FTI.NumParams; ++i) { |
| 374 | ParmVarDecl *Param = cast<ParmVarDecl>(FTI.Params[i].Param); |
| 375 | Actions.ActOnReenterCXXMethodParameter(getCurScope(), Param); |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | ParseAttributeArgsCommon(AttrName, AttrNameLoc, Attrs, EndLoc, ScopeName, |
| 380 | ScopeLoc, Syntax); |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 381 | } |
| 382 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 383 | bool Parser::ParseMicrosoftDeclSpecArgs(IdentifierInfo *AttrName, |
| 384 | SourceLocation AttrNameLoc, |
| 385 | ParsedAttributes &Attrs) { |
| 386 | // If the attribute isn't known, we will not attempt to parse any |
| 387 | // arguments. |
| 388 | if (!hasAttribute(AttrSyntax::Declspec, nullptr, AttrName, |
| 389 | getTargetInfo().getTriple(), getLangOpts())) { |
| 390 | // Eat the left paren, then skip to the ending right paren. |
| 391 | ConsumeParen(); |
| 392 | SkipUntil(tok::r_paren); |
| 393 | return false; |
| 394 | } |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 395 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 396 | SourceLocation OpenParenLoc = Tok.getLocation(); |
| 397 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 398 | if (AttrName->getName() == "property") { |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 399 | // The property declspec is more complex in that it can take one or two |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 400 | // assignment expressions as a parameter, but the lhs of the assignment |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 401 | // must be named get or put. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 402 | |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 403 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 404 | T.expectAndConsume(diag::err_expected_lparen_after, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 405 | AttrName->getNameStart(), tok::r_paren); |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 406 | |
| 407 | enum AccessorKind { |
| 408 | AK_Invalid = -1, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 409 | AK_Put = 0, |
| 410 | AK_Get = 1 // indices into AccessorNames |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 411 | }; |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 412 | IdentifierInfo *AccessorNames[] = {nullptr, nullptr}; |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 413 | bool HasInvalidAccessor = false; |
| 414 | |
| 415 | // Parse the accessor specifications. |
| 416 | while (true) { |
| 417 | // Stop if this doesn't look like an accessor spec. |
| 418 | if (!Tok.is(tok::identifier)) { |
| 419 | // If the user wrote a completely empty list, use a special diagnostic. |
| 420 | if (Tok.is(tok::r_paren) && !HasInvalidAccessor && |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 421 | AccessorNames[AK_Put] == nullptr && |
| 422 | AccessorNames[AK_Get] == nullptr) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 423 | Diag(AttrNameLoc, diag::err_ms_property_no_getter_or_putter); |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 424 | break; |
| 425 | } |
| 426 | |
| 427 | Diag(Tok.getLocation(), diag::err_ms_property_unknown_accessor); |
| 428 | break; |
| 429 | } |
| 430 | |
| 431 | AccessorKind Kind; |
| 432 | SourceLocation KindLoc = Tok.getLocation(); |
| 433 | StringRef KindStr = Tok.getIdentifierInfo()->getName(); |
| 434 | if (KindStr == "get") { |
| 435 | Kind = AK_Get; |
| 436 | } else if (KindStr == "put") { |
| 437 | Kind = AK_Put; |
| 438 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 439 | // Recover from the common mistake of using 'set' instead of 'put'. |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 440 | } else if (KindStr == "set") { |
| 441 | Diag(KindLoc, diag::err_ms_property_has_set_accessor) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 442 | << FixItHint::CreateReplacement(KindLoc, "put"); |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 443 | Kind = AK_Put; |
| 444 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 445 | // Handle the mistake of forgetting the accessor kind by skipping |
| 446 | // this accessor. |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 447 | } else if (NextToken().is(tok::comma) || NextToken().is(tok::r_paren)) { |
| 448 | Diag(KindLoc, diag::err_ms_property_missing_accessor_kind); |
| 449 | ConsumeToken(); |
| 450 | HasInvalidAccessor = true; |
| 451 | goto next_property_accessor; |
| 452 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 453 | // Otherwise, complain about the unknown accessor kind. |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 454 | } else { |
| 455 | Diag(KindLoc, diag::err_ms_property_unknown_accessor); |
| 456 | HasInvalidAccessor = true; |
| 457 | Kind = AK_Invalid; |
| 458 | |
| 459 | // Try to keep parsing unless it doesn't look like an accessor spec. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 460 | if (!NextToken().is(tok::equal)) |
| 461 | break; |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 462 | } |
| 463 | |
| 464 | // Consume the identifier. |
| 465 | ConsumeToken(); |
| 466 | |
| 467 | // Consume the '='. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 468 | if (!TryConsumeToken(tok::equal)) { |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 469 | Diag(Tok.getLocation(), diag::err_ms_property_expected_equal) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 470 | << KindStr; |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 471 | break; |
| 472 | } |
| 473 | |
| 474 | // Expect the method name. |
| 475 | if (!Tok.is(tok::identifier)) { |
| 476 | Diag(Tok.getLocation(), diag::err_ms_property_expected_accessor_name); |
| 477 | break; |
| 478 | } |
| 479 | |
| 480 | if (Kind == AK_Invalid) { |
| 481 | // Just drop invalid accessors. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 482 | } else if (AccessorNames[Kind] != nullptr) { |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 483 | // Complain about the repeated accessor, ignore it, and keep parsing. |
| 484 | Diag(KindLoc, diag::err_ms_property_duplicate_accessor) << KindStr; |
| 485 | } else { |
| 486 | AccessorNames[Kind] = Tok.getIdentifierInfo(); |
| 487 | } |
| 488 | ConsumeToken(); |
| 489 | |
| 490 | next_property_accessor: |
| 491 | // Keep processing accessors until we run out. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 492 | if (TryConsumeToken(tok::comma)) |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 493 | continue; |
| 494 | |
| 495 | // If we run into the ')', stop without consuming it. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 496 | if (Tok.is(tok::r_paren)) |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 497 | break; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 498 | |
| 499 | Diag(Tok.getLocation(), diag::err_ms_property_expected_comma_or_rparen); |
| 500 | break; |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 501 | } |
| 502 | |
| 503 | // Only add the property attribute if it was well-formed. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 504 | if (!HasInvalidAccessor) |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 505 | Attrs.addNewPropertyAttr(AttrName, AttrNameLoc, nullptr, SourceLocation(), |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 506 | AccessorNames[AK_Get], AccessorNames[AK_Put], |
| 507 | AttributeList::AS_Declspec); |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 508 | T.skipToEnd(); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 509 | return !HasInvalidAccessor; |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 510 | } |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 511 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 512 | unsigned NumArgs = |
| 513 | ParseAttributeArgsCommon(AttrName, AttrNameLoc, Attrs, nullptr, nullptr, |
| 514 | SourceLocation(), AttributeList::AS_Declspec); |
| 515 | |
| 516 | // If this attribute's args were parsed, and it was expected to have |
| 517 | // arguments but none were provided, emit a diagnostic. |
| 518 | const AttributeList *Attr = Attrs.getList(); |
| 519 | if (Attr && Attr->getMaxArgs() && !NumArgs) { |
| 520 | Diag(OpenParenLoc, diag::err_attribute_requires_arguments) << AttrName; |
| 521 | return false; |
| 522 | } |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 523 | return true; |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 524 | } |
| 525 | |
Eli Friedman | a23b485 | 2009-06-08 07:21:15 +0000 | [diff] [blame] | 526 | /// [MS] decl-specifier: |
| 527 | /// __declspec ( extended-decl-modifier-seq ) |
| 528 | /// |
| 529 | /// [MS] extended-decl-modifier-seq: |
| 530 | /// extended-decl-modifier[opt] |
| 531 | /// extended-decl-modifier extended-decl-modifier-seq |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 532 | void Parser::ParseMicrosoftDeclSpec(ParsedAttributes &Attrs) { |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 533 | assert(Tok.is(tok::kw___declspec) && "Not a declspec!"); |
Eli Friedman | a23b485 | 2009-06-08 07:21:15 +0000 | [diff] [blame] | 534 | |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 535 | ConsumeToken(); |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 536 | BalancedDelimiterTracker T(*this, tok::l_paren); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 537 | if (T.expectAndConsume(diag::err_expected_lparen_after, "__declspec", |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 538 | tok::r_paren)) |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 539 | return; |
Jakob Stoklund Olesen | 3532936 | 2012-06-19 21:48:43 +0000 | [diff] [blame] | 540 | |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 541 | // An empty declspec is perfectly legal and should not warn. Additionally, |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 542 | // you can specify multiple attributes per declspec. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 543 | while (Tok.isNot(tok::r_paren)) { |
| 544 | // Attribute not present. |
| 545 | if (TryConsumeToken(tok::comma)) |
| 546 | continue; |
| 547 | |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 548 | // We expect either a well-known identifier or a generic string. Anything |
| 549 | // else is a malformed declspec. |
Pirama Arumuga Nainar | 3ea9e33 | 2015-04-08 08:57:32 -0700 | [diff] [blame] | 550 | bool IsString = Tok.getKind() == tok::string_literal; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 551 | if (!IsString && Tok.getKind() != tok::identifier && |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 552 | Tok.getKind() != tok::kw_restrict) { |
| 553 | Diag(Tok, diag::err_ms_declspec_type); |
| 554 | T.skipToEnd(); |
| 555 | return; |
Jakob Stoklund Olesen | 3532936 | 2012-06-19 21:48:43 +0000 | [diff] [blame] | 556 | } |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 557 | |
| 558 | IdentifierInfo *AttrName; |
| 559 | SourceLocation AttrNameLoc; |
| 560 | if (IsString) { |
| 561 | SmallString<8> StrBuffer; |
| 562 | bool Invalid = false; |
| 563 | StringRef Str = PP.getSpelling(Tok, StrBuffer, &Invalid); |
| 564 | if (Invalid) { |
| 565 | T.skipToEnd(); |
| 566 | return; |
Jakob Stoklund Olesen | 3532936 | 2012-06-19 21:48:43 +0000 | [diff] [blame] | 567 | } |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 568 | AttrName = PP.getIdentifierInfo(Str); |
| 569 | AttrNameLoc = ConsumeStringToken(); |
Jakob Stoklund Olesen | 3532936 | 2012-06-19 21:48:43 +0000 | [diff] [blame] | 570 | } else { |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 571 | AttrName = Tok.getIdentifierInfo(); |
| 572 | AttrNameLoc = ConsumeToken(); |
Jakob Stoklund Olesen | 3532936 | 2012-06-19 21:48:43 +0000 | [diff] [blame] | 573 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 574 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 575 | bool AttrHandled = false; |
| 576 | |
| 577 | // Parse attribute arguments. |
| 578 | if (Tok.is(tok::l_paren)) |
| 579 | AttrHandled = ParseMicrosoftDeclSpecArgs(AttrName, AttrNameLoc, Attrs); |
| 580 | else if (AttrName->getName() == "property") |
| 581 | // The property attribute must have an argument list. |
| 582 | Diag(Tok.getLocation(), diag::err_expected_lparen_after) |
| 583 | << AttrName->getName(); |
| 584 | |
| 585 | if (!AttrHandled) |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 586 | Attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0, |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 587 | AttributeList::AS_Declspec); |
Jakob Stoklund Olesen | 3532936 | 2012-06-19 21:48:43 +0000 | [diff] [blame] | 588 | } |
Aaron Ballman | fc685ac | 2012-06-19 22:09:27 +0000 | [diff] [blame] | 589 | T.consumeClose(); |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 590 | } |
| 591 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 592 | void Parser::ParseMicrosoftTypeAttributes(ParsedAttributes &attrs) { |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 593 | // Treat these like attributes |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 594 | while (true) { |
| 595 | switch (Tok.getKind()) { |
| 596 | case tok::kw___fastcall: |
| 597 | case tok::kw___stdcall: |
| 598 | case tok::kw___thiscall: |
| 599 | case tok::kw___cdecl: |
| 600 | case tok::kw___vectorcall: |
| 601 | case tok::kw___ptr64: |
| 602 | case tok::kw___w64: |
| 603 | case tok::kw___ptr32: |
| 604 | case tok::kw___unaligned: |
| 605 | case tok::kw___sptr: |
| 606 | case tok::kw___uptr: { |
| 607 | IdentifierInfo *AttrName = Tok.getIdentifierInfo(); |
| 608 | SourceLocation AttrNameLoc = ConsumeToken(); |
| 609 | attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0, |
| 610 | AttributeList::AS_Keyword); |
| 611 | break; |
| 612 | } |
| 613 | default: |
| 614 | return; |
| 615 | } |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 616 | } |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 617 | } |
| 618 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 619 | void Parser::DiagnoseAndSkipExtendedMicrosoftTypeAttributes() { |
| 620 | SourceLocation StartLoc = Tok.getLocation(); |
| 621 | SourceLocation EndLoc = SkipExtendedMicrosoftTypeAttributes(); |
| 622 | |
| 623 | if (EndLoc.isValid()) { |
| 624 | SourceRange Range(StartLoc, EndLoc); |
| 625 | Diag(StartLoc, diag::warn_microsoft_qualifiers_ignored) << Range; |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | SourceLocation Parser::SkipExtendedMicrosoftTypeAttributes() { |
| 630 | SourceLocation EndLoc; |
| 631 | |
| 632 | while (true) { |
| 633 | switch (Tok.getKind()) { |
| 634 | case tok::kw_const: |
| 635 | case tok::kw_volatile: |
| 636 | case tok::kw___fastcall: |
| 637 | case tok::kw___stdcall: |
| 638 | case tok::kw___thiscall: |
| 639 | case tok::kw___cdecl: |
| 640 | case tok::kw___vectorcall: |
| 641 | case tok::kw___ptr32: |
| 642 | case tok::kw___ptr64: |
| 643 | case tok::kw___w64: |
| 644 | case tok::kw___unaligned: |
| 645 | case tok::kw___sptr: |
| 646 | case tok::kw___uptr: |
| 647 | EndLoc = ConsumeToken(); |
| 648 | break; |
| 649 | default: |
| 650 | return EndLoc; |
| 651 | } |
| 652 | } |
| 653 | } |
| 654 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 655 | void Parser::ParseBorlandTypeAttributes(ParsedAttributes &attrs) { |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 656 | // Treat these like attributes |
| 657 | while (Tok.is(tok::kw___pascal)) { |
| 658 | IdentifierInfo *AttrName = Tok.getIdentifierInfo(); |
| 659 | SourceLocation AttrNameLoc = ConsumeToken(); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 660 | attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0, |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 661 | AttributeList::AS_Keyword); |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 662 | } |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 663 | } |
| 664 | |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 665 | void Parser::ParseOpenCLAttributes(ParsedAttributes &attrs) { |
| 666 | // Treat these like attributes |
| 667 | while (Tok.is(tok::kw___kernel)) { |
Richard Smith | 5cd532c | 2013-01-29 01:24:26 +0000 | [diff] [blame] | 668 | IdentifierInfo *AttrName = Tok.getIdentifierInfo(); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 669 | SourceLocation AttrNameLoc = ConsumeToken(); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 670 | attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0, |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 671 | AttributeList::AS_Keyword); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 672 | } |
| 673 | } |
| 674 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 675 | void Parser::ParseOpenCLQualifiers(ParsedAttributes &Attrs) { |
| 676 | IdentifierInfo *AttrName = Tok.getIdentifierInfo(); |
| 677 | SourceLocation AttrNameLoc = Tok.getLocation(); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 678 | Attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 679 | AttributeList::AS_Keyword); |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 680 | } |
| 681 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 682 | static bool VersionNumberSeparator(const char Separator) { |
| 683 | return (Separator == '.' || Separator == '_'); |
| 684 | } |
| 685 | |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 686 | /// \brief Parse a version number. |
| 687 | /// |
| 688 | /// version: |
| 689 | /// simple-integer |
| 690 | /// simple-integer ',' simple-integer |
| 691 | /// simple-integer ',' simple-integer ',' simple-integer |
| 692 | VersionTuple Parser::ParseVersionTuple(SourceRange &Range) { |
| 693 | Range = Tok.getLocation(); |
| 694 | |
| 695 | if (!Tok.is(tok::numeric_constant)) { |
| 696 | Diag(Tok, diag::err_expected_version); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 697 | SkipUntil(tok::comma, tok::r_paren, |
| 698 | StopAtSemi | StopBeforeMatch | StopAtCodeCompletion); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 699 | return VersionTuple(); |
| 700 | } |
| 701 | |
| 702 | // Parse the major (and possibly minor and subminor) versions, which |
| 703 | // are stored in the numeric constant. We utilize a quirk of the |
| 704 | // lexer, which is that it handles something like 1.2.3 as a single |
| 705 | // numeric constant, rather than two separate tokens. |
Dylan Noblesmith | f7ccbad | 2012-02-05 02:13:05 +0000 | [diff] [blame] | 706 | SmallString<512> Buffer; |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 707 | Buffer.resize(Tok.getLength()+1); |
| 708 | const char *ThisTokBegin = &Buffer[0]; |
| 709 | |
| 710 | // Get the spelling of the token, which eliminates trigraphs, etc. |
| 711 | bool Invalid = false; |
| 712 | unsigned ActualLength = PP.getSpelling(Tok, ThisTokBegin, &Invalid); |
| 713 | if (Invalid) |
| 714 | return VersionTuple(); |
| 715 | |
| 716 | // Parse the major version. |
| 717 | unsigned AfterMajor = 0; |
| 718 | unsigned Major = 0; |
Jordan Rose | 3f6f51e | 2013-02-08 22:30:41 +0000 | [diff] [blame] | 719 | while (AfterMajor < ActualLength && isDigit(ThisTokBegin[AfterMajor])) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 720 | Major = Major * 10 + ThisTokBegin[AfterMajor] - '0'; |
| 721 | ++AfterMajor; |
| 722 | } |
| 723 | |
| 724 | if (AfterMajor == 0) { |
| 725 | Diag(Tok, diag::err_expected_version); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 726 | SkipUntil(tok::comma, tok::r_paren, |
| 727 | StopAtSemi | StopBeforeMatch | StopAtCodeCompletion); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 728 | return VersionTuple(); |
| 729 | } |
| 730 | |
| 731 | if (AfterMajor == ActualLength) { |
| 732 | ConsumeToken(); |
| 733 | |
| 734 | // We only had a single version component. |
| 735 | if (Major == 0) { |
| 736 | Diag(Tok, diag::err_zero_version); |
| 737 | return VersionTuple(); |
| 738 | } |
| 739 | |
| 740 | return VersionTuple(Major); |
| 741 | } |
| 742 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 743 | const char AfterMajorSeparator = ThisTokBegin[AfterMajor]; |
| 744 | if (!VersionNumberSeparator(AfterMajorSeparator) |
| 745 | || (AfterMajor + 1 == ActualLength)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 746 | Diag(Tok, diag::err_expected_version); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 747 | SkipUntil(tok::comma, tok::r_paren, |
| 748 | StopAtSemi | StopBeforeMatch | StopAtCodeCompletion); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 749 | return VersionTuple(); |
| 750 | } |
| 751 | |
| 752 | // Parse the minor version. |
| 753 | unsigned AfterMinor = AfterMajor + 1; |
| 754 | unsigned Minor = 0; |
Jordan Rose | 3f6f51e | 2013-02-08 22:30:41 +0000 | [diff] [blame] | 755 | while (AfterMinor < ActualLength && isDigit(ThisTokBegin[AfterMinor])) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 756 | Minor = Minor * 10 + ThisTokBegin[AfterMinor] - '0'; |
| 757 | ++AfterMinor; |
| 758 | } |
| 759 | |
| 760 | if (AfterMinor == ActualLength) { |
| 761 | ConsumeToken(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 762 | |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 763 | // We had major.minor. |
| 764 | if (Major == 0 && Minor == 0) { |
| 765 | Diag(Tok, diag::err_zero_version); |
| 766 | return VersionTuple(); |
| 767 | } |
| 768 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 769 | return VersionTuple(Major, Minor, (AfterMajorSeparator == '_')); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 770 | } |
| 771 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 772 | const char AfterMinorSeparator = ThisTokBegin[AfterMinor]; |
| 773 | // If what follows is not a '.' or '_', we have a problem. |
| 774 | if (!VersionNumberSeparator(AfterMinorSeparator)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 775 | Diag(Tok, diag::err_expected_version); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 776 | SkipUntil(tok::comma, tok::r_paren, |
| 777 | StopAtSemi | StopBeforeMatch | StopAtCodeCompletion); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 778 | return VersionTuple(); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 779 | } |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 780 | |
| 781 | // Warn if separators, be it '.' or '_', do not match. |
| 782 | if (AfterMajorSeparator != AfterMinorSeparator) |
| 783 | Diag(Tok, diag::warn_expected_consistent_version_separator); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 784 | |
| 785 | // Parse the subminor version. |
| 786 | unsigned AfterSubminor = AfterMinor + 1; |
| 787 | unsigned Subminor = 0; |
Jordan Rose | 3f6f51e | 2013-02-08 22:30:41 +0000 | [diff] [blame] | 788 | while (AfterSubminor < ActualLength && isDigit(ThisTokBegin[AfterSubminor])) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 789 | Subminor = Subminor * 10 + ThisTokBegin[AfterSubminor] - '0'; |
| 790 | ++AfterSubminor; |
| 791 | } |
| 792 | |
| 793 | if (AfterSubminor != ActualLength) { |
| 794 | Diag(Tok, diag::err_expected_version); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 795 | SkipUntil(tok::comma, tok::r_paren, |
| 796 | StopAtSemi | StopBeforeMatch | StopAtCodeCompletion); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 797 | return VersionTuple(); |
| 798 | } |
| 799 | ConsumeToken(); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 800 | return VersionTuple(Major, Minor, Subminor, (AfterMajorSeparator == '_')); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 801 | } |
| 802 | |
| 803 | /// \brief Parse the contents of the "availability" attribute. |
| 804 | /// |
| 805 | /// availability-attribute: |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 806 | /// 'availability' '(' platform ',' version-arg-list, opt-message')' |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 807 | /// |
| 808 | /// platform: |
| 809 | /// identifier |
| 810 | /// |
| 811 | /// version-arg-list: |
| 812 | /// version-arg |
| 813 | /// version-arg ',' version-arg-list |
| 814 | /// |
| 815 | /// version-arg: |
| 816 | /// 'introduced' '=' version |
| 817 | /// 'deprecated' '=' version |
Douglas Gregor | 93a7067 | 2012-03-11 04:53:21 +0000 | [diff] [blame] | 818 | /// 'obsoleted' = version |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 819 | /// 'unavailable' |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 820 | /// opt-message: |
| 821 | /// 'message' '=' <string> |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 822 | void Parser::ParseAvailabilityAttribute(IdentifierInfo &Availability, |
| 823 | SourceLocation AvailabilityLoc, |
| 824 | ParsedAttributes &attrs, |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 825 | SourceLocation *endLoc, |
| 826 | IdentifierInfo *ScopeName, |
| 827 | SourceLocation ScopeLoc, |
| 828 | AttributeList::Syntax Syntax) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 829 | enum { Introduced, Deprecated, Obsoleted, Unknown }; |
| 830 | AvailabilityChange Changes[Unknown]; |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 831 | ExprResult MessageExpr; |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 832 | |
| 833 | // Opening '('. |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 834 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 835 | if (T.consumeOpen()) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 836 | Diag(Tok, diag::err_expected) << tok::l_paren; |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 837 | return; |
| 838 | } |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 839 | |
| 840 | // Parse the platform name, |
| 841 | if (Tok.isNot(tok::identifier)) { |
| 842 | Diag(Tok, diag::err_availability_expected_platform); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 843 | SkipUntil(tok::r_paren, StopAtSemi); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 844 | return; |
| 845 | } |
Richard Smith | 8edabd9 | 2013-09-03 18:01:40 +0000 | [diff] [blame] | 846 | IdentifierLoc *Platform = ParseIdentifierLoc(); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 847 | |
| 848 | // Parse the ',' following the platform name. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 849 | if (ExpectAndConsume(tok::comma)) { |
| 850 | SkipUntil(tok::r_paren, StopAtSemi); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 851 | return; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 852 | } |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 853 | |
| 854 | // If we haven't grabbed the pointers for the identifiers |
| 855 | // "introduced", "deprecated", and "obsoleted", do so now. |
| 856 | if (!Ident_introduced) { |
| 857 | Ident_introduced = PP.getIdentifierInfo("introduced"); |
| 858 | Ident_deprecated = PP.getIdentifierInfo("deprecated"); |
| 859 | Ident_obsoleted = PP.getIdentifierInfo("obsoleted"); |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 860 | Ident_unavailable = PP.getIdentifierInfo("unavailable"); |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 861 | Ident_message = PP.getIdentifierInfo("message"); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 862 | } |
| 863 | |
| 864 | // Parse the set of introductions/deprecations/removals. |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 865 | SourceLocation UnavailableLoc; |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 866 | do { |
| 867 | if (Tok.isNot(tok::identifier)) { |
| 868 | Diag(Tok, diag::err_availability_expected_change); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 869 | SkipUntil(tok::r_paren, StopAtSemi); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 870 | return; |
| 871 | } |
| 872 | IdentifierInfo *Keyword = Tok.getIdentifierInfo(); |
| 873 | SourceLocation KeywordLoc = ConsumeToken(); |
| 874 | |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 875 | if (Keyword == Ident_unavailable) { |
| 876 | if (UnavailableLoc.isValid()) { |
| 877 | Diag(KeywordLoc, diag::err_availability_redundant) |
| 878 | << Keyword << SourceRange(UnavailableLoc); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 879 | } |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 880 | UnavailableLoc = KeywordLoc; |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 881 | continue; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 882 | } |
| 883 | |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 884 | if (Tok.isNot(tok::equal)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 885 | Diag(Tok, diag::err_expected_after) << Keyword << tok::equal; |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 886 | SkipUntil(tok::r_paren, StopAtSemi); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 887 | return; |
| 888 | } |
| 889 | ConsumeToken(); |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 890 | if (Keyword == Ident_message) { |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 891 | if (Tok.isNot(tok::string_literal)) { |
Andy Gibbs | 97f8461 | 2012-11-17 19:16:52 +0000 | [diff] [blame] | 892 | Diag(Tok, diag::err_expected_string_literal) |
| 893 | << /*Source='availability attribute'*/2; |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 894 | SkipUntil(tok::r_paren, StopAtSemi); |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 895 | return; |
| 896 | } |
| 897 | MessageExpr = ParseStringLiteralExpression(); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 898 | // Also reject wide string literals. |
| 899 | if (StringLiteral *MessageStringLiteral = |
| 900 | cast_or_null<StringLiteral>(MessageExpr.get())) { |
| 901 | if (MessageStringLiteral->getCharByteWidth() != 1) { |
| 902 | Diag(MessageStringLiteral->getSourceRange().getBegin(), |
| 903 | diag::err_expected_string_literal) |
| 904 | << /*Source='availability attribute'*/ 2; |
| 905 | SkipUntil(tok::r_paren, StopAtSemi); |
| 906 | return; |
| 907 | } |
| 908 | } |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 909 | break; |
| 910 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 911 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 912 | // Special handling of 'NA' only when applied to introduced or |
| 913 | // deprecated. |
| 914 | if ((Keyword == Ident_introduced || Keyword == Ident_deprecated) && |
| 915 | Tok.is(tok::identifier)) { |
| 916 | IdentifierInfo *NA = Tok.getIdentifierInfo(); |
| 917 | if (NA->getName() == "NA") { |
| 918 | ConsumeToken(); |
| 919 | if (Keyword == Ident_introduced) |
| 920 | UnavailableLoc = KeywordLoc; |
| 921 | continue; |
| 922 | } |
| 923 | } |
| 924 | |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 925 | SourceRange VersionRange; |
| 926 | VersionTuple Version = ParseVersionTuple(VersionRange); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 927 | |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 928 | if (Version.empty()) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 929 | SkipUntil(tok::r_paren, StopAtSemi); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 930 | return; |
| 931 | } |
| 932 | |
| 933 | unsigned Index; |
| 934 | if (Keyword == Ident_introduced) |
| 935 | Index = Introduced; |
| 936 | else if (Keyword == Ident_deprecated) |
| 937 | Index = Deprecated; |
| 938 | else if (Keyword == Ident_obsoleted) |
| 939 | Index = Obsoleted; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 940 | else |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 941 | Index = Unknown; |
| 942 | |
| 943 | if (Index < Unknown) { |
| 944 | if (!Changes[Index].KeywordLoc.isInvalid()) { |
| 945 | Diag(KeywordLoc, diag::err_availability_redundant) |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 946 | << Keyword |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 947 | << SourceRange(Changes[Index].KeywordLoc, |
| 948 | Changes[Index].VersionRange.getEnd()); |
| 949 | } |
| 950 | |
| 951 | Changes[Index].KeywordLoc = KeywordLoc; |
| 952 | Changes[Index].Version = Version; |
| 953 | Changes[Index].VersionRange = VersionRange; |
| 954 | } else { |
| 955 | Diag(KeywordLoc, diag::err_availability_unknown_change) |
| 956 | << Keyword << VersionRange; |
| 957 | } |
| 958 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 959 | } while (TryConsumeToken(tok::comma)); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 960 | |
| 961 | // Closing ')'. |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 962 | if (T.consumeClose()) |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 963 | return; |
| 964 | |
| 965 | if (endLoc) |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 966 | *endLoc = T.getCloseLocation(); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 967 | |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 968 | // The 'unavailable' availability cannot be combined with any other |
| 969 | // availability changes. Make sure that hasn't happened. |
| 970 | if (UnavailableLoc.isValid()) { |
| 971 | bool Complained = false; |
| 972 | for (unsigned Index = Introduced; Index != Unknown; ++Index) { |
| 973 | if (Changes[Index].KeywordLoc.isValid()) { |
| 974 | if (!Complained) { |
| 975 | Diag(UnavailableLoc, diag::warn_availability_and_unavailable) |
| 976 | << SourceRange(Changes[Index].KeywordLoc, |
| 977 | Changes[Index].VersionRange.getEnd()); |
| 978 | Complained = true; |
| 979 | } |
| 980 | |
| 981 | // Clear out the availability. |
| 982 | Changes[Index] = AvailabilityChange(); |
| 983 | } |
| 984 | } |
| 985 | } |
| 986 | |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 987 | // Record this attribute |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 988 | attrs.addNew(&Availability, |
| 989 | SourceRange(AvailabilityLoc, T.getCloseLocation()), |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 990 | ScopeName, ScopeLoc, |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 991 | Platform, |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 992 | Changes[Introduced], |
| 993 | Changes[Deprecated], |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 994 | Changes[Obsoleted], |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 995 | UnavailableLoc, MessageExpr.get(), |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 996 | Syntax); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 997 | } |
| 998 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 999 | /// \brief Parse the contents of the "objc_bridge_related" attribute. |
| 1000 | /// objc_bridge_related '(' related_class ',' opt-class_method ',' opt-instance_method ')' |
| 1001 | /// related_class: |
| 1002 | /// Identifier |
| 1003 | /// |
| 1004 | /// opt-class_method: |
| 1005 | /// Identifier: | <empty> |
| 1006 | /// |
| 1007 | /// opt-instance_method: |
| 1008 | /// Identifier | <empty> |
| 1009 | /// |
| 1010 | void Parser::ParseObjCBridgeRelatedAttribute(IdentifierInfo &ObjCBridgeRelated, |
| 1011 | SourceLocation ObjCBridgeRelatedLoc, |
| 1012 | ParsedAttributes &attrs, |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1013 | SourceLocation *endLoc, |
| 1014 | IdentifierInfo *ScopeName, |
| 1015 | SourceLocation ScopeLoc, |
| 1016 | AttributeList::Syntax Syntax) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1017 | // Opening '('. |
| 1018 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 1019 | if (T.consumeOpen()) { |
| 1020 | Diag(Tok, diag::err_expected) << tok::l_paren; |
| 1021 | return; |
| 1022 | } |
| 1023 | |
| 1024 | // Parse the related class name. |
| 1025 | if (Tok.isNot(tok::identifier)) { |
| 1026 | Diag(Tok, diag::err_objcbridge_related_expected_related_class); |
| 1027 | SkipUntil(tok::r_paren, StopAtSemi); |
| 1028 | return; |
| 1029 | } |
| 1030 | IdentifierLoc *RelatedClass = ParseIdentifierLoc(); |
| 1031 | if (ExpectAndConsume(tok::comma)) { |
| 1032 | SkipUntil(tok::r_paren, StopAtSemi); |
| 1033 | return; |
| 1034 | } |
| 1035 | |
| 1036 | // Parse optional class method name. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1037 | IdentifierLoc *ClassMethod = nullptr; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1038 | if (Tok.is(tok::identifier)) { |
| 1039 | ClassMethod = ParseIdentifierLoc(); |
| 1040 | if (!TryConsumeToken(tok::colon)) { |
| 1041 | Diag(Tok, diag::err_objcbridge_related_selector_name); |
| 1042 | SkipUntil(tok::r_paren, StopAtSemi); |
| 1043 | return; |
| 1044 | } |
| 1045 | } |
| 1046 | if (!TryConsumeToken(tok::comma)) { |
| 1047 | if (Tok.is(tok::colon)) |
| 1048 | Diag(Tok, diag::err_objcbridge_related_selector_name); |
| 1049 | else |
| 1050 | Diag(Tok, diag::err_expected) << tok::comma; |
| 1051 | SkipUntil(tok::r_paren, StopAtSemi); |
| 1052 | return; |
| 1053 | } |
| 1054 | |
| 1055 | // Parse optional instance method name. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1056 | IdentifierLoc *InstanceMethod = nullptr; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1057 | if (Tok.is(tok::identifier)) |
| 1058 | InstanceMethod = ParseIdentifierLoc(); |
| 1059 | else if (Tok.isNot(tok::r_paren)) { |
| 1060 | Diag(Tok, diag::err_expected) << tok::r_paren; |
| 1061 | SkipUntil(tok::r_paren, StopAtSemi); |
| 1062 | return; |
| 1063 | } |
| 1064 | |
| 1065 | // Closing ')'. |
| 1066 | if (T.consumeClose()) |
| 1067 | return; |
| 1068 | |
| 1069 | if (endLoc) |
| 1070 | *endLoc = T.getCloseLocation(); |
| 1071 | |
| 1072 | // Record this attribute |
| 1073 | attrs.addNew(&ObjCBridgeRelated, |
| 1074 | SourceRange(ObjCBridgeRelatedLoc, T.getCloseLocation()), |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1075 | ScopeName, ScopeLoc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1076 | RelatedClass, |
| 1077 | ClassMethod, |
| 1078 | InstanceMethod, |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1079 | Syntax); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1080 | } |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1081 | |
Bill Wendling | ad017fa | 2012-12-20 19:22:21 +0000 | [diff] [blame] | 1082 | // Late Parsed Attributes: |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1083 | // See other examples of late parsing in lib/Parse/ParseCXXInlineMethods |
| 1084 | |
| 1085 | void Parser::LateParsedDeclaration::ParseLexedAttributes() {} |
| 1086 | |
| 1087 | void Parser::LateParsedClass::ParseLexedAttributes() { |
| 1088 | Self->ParseLexedAttributes(*Class); |
| 1089 | } |
| 1090 | |
| 1091 | void Parser::LateParsedAttribute::ParseLexedAttributes() { |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1092 | Self->ParseLexedAttribute(*this, true, false); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1093 | } |
| 1094 | |
| 1095 | /// Wrapper class which calls ParseLexedAttribute, after setting up the |
| 1096 | /// scope appropriately. |
| 1097 | void Parser::ParseLexedAttributes(ParsingClass &Class) { |
| 1098 | // Deal with templates |
| 1099 | // FIXME: Test cases to make sure this does the right thing for templates. |
| 1100 | bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope; |
| 1101 | ParseScope ClassTemplateScope(this, Scope::TemplateParamScope, |
| 1102 | HasTemplateScope); |
| 1103 | if (HasTemplateScope) |
| 1104 | Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate); |
| 1105 | |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 1106 | // Set or update the scope flags. |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1107 | bool AlreadyHasClassScope = Class.TopLevelClass; |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 1108 | unsigned ScopeFlags = Scope::ClassScope|Scope::DeclScope; |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1109 | ParseScope ClassScope(this, ScopeFlags, !AlreadyHasClassScope); |
| 1110 | ParseScopeFlags ClassScopeFlags(this, ScopeFlags, AlreadyHasClassScope); |
| 1111 | |
DeLesley Hutchins | cf2fa2f | 2012-04-06 15:10:17 +0000 | [diff] [blame] | 1112 | // Enter the scope of nested classes |
| 1113 | if (!AlreadyHasClassScope) |
| 1114 | Actions.ActOnStartDelayedMemberDeclarations(getCurScope(), |
| 1115 | Class.TagOrTemplate); |
Benjamin Kramer | 268efba | 2012-05-17 12:01:52 +0000 | [diff] [blame] | 1116 | if (!Class.LateParsedDeclarations.empty()) { |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 1117 | for (unsigned i = 0, ni = Class.LateParsedDeclarations.size(); i < ni; ++i){ |
| 1118 | Class.LateParsedDeclarations[i]->ParseLexedAttributes(); |
| 1119 | } |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1120 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1121 | |
DeLesley Hutchins | cf2fa2f | 2012-04-06 15:10:17 +0000 | [diff] [blame] | 1122 | if (!AlreadyHasClassScope) |
| 1123 | Actions.ActOnFinishDelayedMemberDeclarations(getCurScope(), |
| 1124 | Class.TagOrTemplate); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1125 | } |
| 1126 | |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1127 | |
| 1128 | /// \brief Parse all attributes in LAs, and attach them to Decl D. |
| 1129 | void Parser::ParseLexedAttributeList(LateParsedAttrList &LAs, Decl *D, |
| 1130 | bool EnterScope, bool OnDefinition) { |
DeLesley Hutchins | 161db02 | 2012-11-02 21:44:32 +0000 | [diff] [blame] | 1131 | assert(LAs.parseSoon() && |
| 1132 | "Attribute list should be marked for immediate parsing."); |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1133 | for (unsigned i = 0, ni = LAs.size(); i < ni; ++i) { |
DeLesley Hutchins | 95526a4 | 2012-08-15 22:41:04 +0000 | [diff] [blame] | 1134 | if (D) |
| 1135 | LAs[i]->addDecl(D); |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1136 | ParseLexedAttribute(*LAs[i], EnterScope, OnDefinition); |
Benjamin Kramer | d306cf7 | 2012-04-14 12:44:47 +0000 | [diff] [blame] | 1137 | delete LAs[i]; |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1138 | } |
| 1139 | LAs.clear(); |
| 1140 | } |
| 1141 | |
| 1142 | |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1143 | /// \brief Finish parsing an attribute for which parsing was delayed. |
| 1144 | /// This will be called at the end of parsing a class declaration |
| 1145 | /// for each LateParsedAttribute. We consume the saved tokens and |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1146 | /// create an attribute with the arguments filled in. We add this |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1147 | /// to the Attribute list for the decl. |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1148 | void Parser::ParseLexedAttribute(LateParsedAttribute &LA, |
| 1149 | bool EnterScope, bool OnDefinition) { |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 1150 | // Create a fake EOF so that attribute parsing won't go off the end of the |
| 1151 | // attribute. |
| 1152 | Token AttrEnd; |
| 1153 | AttrEnd.startToken(); |
| 1154 | AttrEnd.setKind(tok::eof); |
| 1155 | AttrEnd.setLocation(Tok.getLocation()); |
| 1156 | AttrEnd.setEofData(LA.Toks.data()); |
| 1157 | LA.Toks.push_back(AttrEnd); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1158 | |
| 1159 | // Append the current token at the end of the new token stream so that it |
| 1160 | // doesn't get lost. |
| 1161 | LA.Toks.push_back(Tok); |
| 1162 | PP.EnterTokenStream(LA.Toks.data(), LA.Toks.size(), true, false); |
| 1163 | // Consume the previously pushed token. |
Argyrios Kyrtzidis | ab2d09b | 2013-03-27 23:58:17 +0000 | [diff] [blame] | 1164 | ConsumeAnyToken(/*ConsumeCodeCompletionTok=*/true); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1165 | |
| 1166 | ParsedAttributes Attrs(AttrFactory); |
| 1167 | SourceLocation endLoc; |
| 1168 | |
DeLesley Hutchins | d30fb9e | 2012-08-20 21:32:18 +0000 | [diff] [blame] | 1169 | if (LA.Decls.size() > 0) { |
DeLesley Hutchins | 2287c5e | 2012-03-02 22:12:59 +0000 | [diff] [blame] | 1170 | Decl *D = LA.Decls[0]; |
DeLesley Hutchins | d30fb9e | 2012-08-20 21:32:18 +0000 | [diff] [blame] | 1171 | NamedDecl *ND = dyn_cast<NamedDecl>(D); |
| 1172 | RecordDecl *RD = dyn_cast_or_null<RecordDecl>(D->getDeclContext()); |
Caitlin Sadowski | ed9d84a | 2011-09-08 17:42:31 +0000 | [diff] [blame] | 1173 | |
DeLesley Hutchins | d30fb9e | 2012-08-20 21:32:18 +0000 | [diff] [blame] | 1174 | // Allow 'this' within late-parsed attributes. |
Richard Smith | cafeb94 | 2013-06-07 02:33:37 +0000 | [diff] [blame] | 1175 | Sema::CXXThisScopeRAII ThisScope(Actions, RD, /*TypeQuals=*/0, |
| 1176 | ND && ND->isCXXInstanceMember()); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1177 | |
DeLesley Hutchins | d30fb9e | 2012-08-20 21:32:18 +0000 | [diff] [blame] | 1178 | if (LA.Decls.size() == 1) { |
| 1179 | // If the Decl is templatized, add template parameters to scope. |
| 1180 | bool HasTemplateScope = EnterScope && D->isTemplateDecl(); |
| 1181 | ParseScope TempScope(this, Scope::TemplateParamScope, HasTemplateScope); |
| 1182 | if (HasTemplateScope) |
| 1183 | Actions.ActOnReenterTemplateScope(Actions.CurScope, D); |
DeLesley Hutchins | 2287c5e | 2012-03-02 22:12:59 +0000 | [diff] [blame] | 1184 | |
DeLesley Hutchins | d30fb9e | 2012-08-20 21:32:18 +0000 | [diff] [blame] | 1185 | // If the Decl is on a function, add function parameters to the scope. |
| 1186 | bool HasFunScope = EnterScope && D->isFunctionOrFunctionTemplate(); |
| 1187 | ParseScope FnScope(this, Scope::FnScope|Scope::DeclScope, HasFunScope); |
| 1188 | if (HasFunScope) |
| 1189 | Actions.ActOnReenterFunctionContext(Actions.CurScope, D); |
DeLesley Hutchins | 2287c5e | 2012-03-02 22:12:59 +0000 | [diff] [blame] | 1190 | |
Michael Han | 6880f49 | 2012-10-03 01:56:22 +0000 | [diff] [blame] | 1191 | ParseGNUAttributeArgs(&LA.AttrName, LA.AttrNameLoc, Attrs, &endLoc, |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1192 | nullptr, SourceLocation(), AttributeList::AS_GNU, |
| 1193 | nullptr); |
DeLesley Hutchins | d30fb9e | 2012-08-20 21:32:18 +0000 | [diff] [blame] | 1194 | |
| 1195 | if (HasFunScope) { |
| 1196 | Actions.ActOnExitFunctionContext(); |
| 1197 | FnScope.Exit(); // Pop scope, and remove Decls from IdResolver |
| 1198 | } |
| 1199 | if (HasTemplateScope) { |
| 1200 | TempScope.Exit(); |
| 1201 | } |
| 1202 | } else { |
| 1203 | // If there are multiple decls, then the decl cannot be within the |
| 1204 | // function scope. |
Michael Han | 6880f49 | 2012-10-03 01:56:22 +0000 | [diff] [blame] | 1205 | ParseGNUAttributeArgs(&LA.AttrName, LA.AttrNameLoc, Attrs, &endLoc, |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1206 | nullptr, SourceLocation(), AttributeList::AS_GNU, |
| 1207 | nullptr); |
DeLesley Hutchins | 2287c5e | 2012-03-02 22:12:59 +0000 | [diff] [blame] | 1208 | } |
DeLesley Hutchins | 7ec419a | 2012-03-02 22:29:50 +0000 | [diff] [blame] | 1209 | } else { |
| 1210 | Diag(Tok, diag::warn_attribute_no_decl) << LA.AttrName.getName(); |
Caitlin Sadowski | ed9d84a | 2011-09-08 17:42:31 +0000 | [diff] [blame] | 1211 | } |
| 1212 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1213 | const AttributeList *AL = Attrs.getList(); |
| 1214 | if (OnDefinition && AL && !AL->isCXX11Attribute() && |
| 1215 | AL->isKnownToGCC()) |
| 1216 | Diag(Tok, diag::warn_attribute_on_function_definition) |
| 1217 | << &LA.AttrName; |
| 1218 | |
| 1219 | for (unsigned i = 0, ni = LA.Decls.size(); i < ni; ++i) |
DeLesley Hutchins | 2287c5e | 2012-03-02 22:12:59 +0000 | [diff] [blame] | 1220 | Actions.ActOnFinishDelayedAttribute(getCurScope(), LA.Decls[i], Attrs); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1221 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 1222 | // Due to a parsing error, we either went over the cached tokens or |
| 1223 | // there are still cached tokens left, so we skip the leftover tokens. |
| 1224 | while (Tok.isNot(tok::eof)) |
| 1225 | ConsumeAnyToken(); |
| 1226 | |
| 1227 | if (Tok.is(tok::eof) && Tok.getEofData() == AttrEnd.getEofData()) |
| 1228 | ConsumeAnyToken(); |
Caitlin Sadowski | eff98fc | 2011-09-08 17:42:22 +0000 | [diff] [blame] | 1229 | } |
| 1230 | |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1231 | void Parser::ParseTypeTagForDatatypeAttribute(IdentifierInfo &AttrName, |
| 1232 | SourceLocation AttrNameLoc, |
| 1233 | ParsedAttributes &Attrs, |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1234 | SourceLocation *EndLoc, |
| 1235 | IdentifierInfo *ScopeName, |
| 1236 | SourceLocation ScopeLoc, |
| 1237 | AttributeList::Syntax Syntax) { |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1238 | assert(Tok.is(tok::l_paren) && "Attribute arg list not starting with '('"); |
| 1239 | |
| 1240 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 1241 | T.consumeOpen(); |
| 1242 | |
| 1243 | if (Tok.isNot(tok::identifier)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1244 | Diag(Tok, diag::err_expected) << tok::identifier; |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1245 | T.skipToEnd(); |
| 1246 | return; |
| 1247 | } |
Richard Smith | 8edabd9 | 2013-09-03 18:01:40 +0000 | [diff] [blame] | 1248 | IdentifierLoc *ArgumentKind = ParseIdentifierLoc(); |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1249 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1250 | if (ExpectAndConsume(tok::comma)) { |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1251 | T.skipToEnd(); |
| 1252 | return; |
| 1253 | } |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1254 | |
| 1255 | SourceRange MatchingCTypeRange; |
| 1256 | TypeResult MatchingCType = ParseTypeName(&MatchingCTypeRange); |
| 1257 | if (MatchingCType.isInvalid()) { |
| 1258 | T.skipToEnd(); |
| 1259 | return; |
| 1260 | } |
| 1261 | |
| 1262 | bool LayoutCompatible = false; |
| 1263 | bool MustBeNull = false; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1264 | while (TryConsumeToken(tok::comma)) { |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1265 | if (Tok.isNot(tok::identifier)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1266 | Diag(Tok, diag::err_expected) << tok::identifier; |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1267 | T.skipToEnd(); |
| 1268 | return; |
| 1269 | } |
| 1270 | IdentifierInfo *Flag = Tok.getIdentifierInfo(); |
| 1271 | if (Flag->isStr("layout_compatible")) |
| 1272 | LayoutCompatible = true; |
| 1273 | else if (Flag->isStr("must_be_null")) |
| 1274 | MustBeNull = true; |
| 1275 | else { |
| 1276 | Diag(Tok, diag::err_type_safety_unknown_flag) << Flag; |
| 1277 | T.skipToEnd(); |
| 1278 | return; |
| 1279 | } |
| 1280 | ConsumeToken(); // consume flag |
| 1281 | } |
| 1282 | |
| 1283 | if (!T.consumeClose()) { |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1284 | Attrs.addNewTypeTagForDatatype(&AttrName, AttrNameLoc, ScopeName, ScopeLoc, |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 1285 | ArgumentKind, MatchingCType.get(), |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1286 | LayoutCompatible, MustBeNull, Syntax); |
Dmitri Gribenko | 0d5a069 | 2012-08-17 00:08:38 +0000 | [diff] [blame] | 1287 | } |
| 1288 | |
| 1289 | if (EndLoc) |
| 1290 | *EndLoc = T.getCloseLocation(); |
| 1291 | } |
| 1292 | |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 1293 | /// DiagnoseProhibitedCXX11Attribute - We have found the opening square brackets |
| 1294 | /// of a C++11 attribute-specifier in a location where an attribute is not |
| 1295 | /// permitted. By C++11 [dcl.attr.grammar]p6, this is ill-formed. Diagnose this |
| 1296 | /// situation. |
| 1297 | /// |
| 1298 | /// \return \c true if we skipped an attribute-like chunk of tokens, \c false if |
| 1299 | /// this doesn't appear to actually be an attribute-specifier, and the caller |
| 1300 | /// should try to parse it. |
| 1301 | bool Parser::DiagnoseProhibitedCXX11Attribute() { |
| 1302 | assert(Tok.is(tok::l_square) && NextToken().is(tok::l_square)); |
| 1303 | |
| 1304 | switch (isCXX11AttributeSpecifier(/*Disambiguate*/true)) { |
| 1305 | case CAK_NotAttributeSpecifier: |
| 1306 | // No diagnostic: we're in Obj-C++11 and this is not actually an attribute. |
| 1307 | return false; |
| 1308 | |
| 1309 | case CAK_InvalidAttributeSpecifier: |
| 1310 | Diag(Tok.getLocation(), diag::err_l_square_l_square_not_attribute); |
| 1311 | return false; |
| 1312 | |
| 1313 | case CAK_AttributeSpecifier: |
| 1314 | // Parse and discard the attributes. |
| 1315 | SourceLocation BeginLoc = ConsumeBracket(); |
| 1316 | ConsumeBracket(); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 1317 | SkipUntil(tok::r_square); |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 1318 | assert(Tok.is(tok::r_square) && "isCXX11AttributeSpecifier lied"); |
| 1319 | SourceLocation EndLoc = ConsumeBracket(); |
| 1320 | Diag(BeginLoc, diag::err_attributes_not_allowed) |
| 1321 | << SourceRange(BeginLoc, EndLoc); |
| 1322 | return true; |
| 1323 | } |
Chandler Carruth | 2c6dbd7 | 2012-04-10 16:03:08 +0000 | [diff] [blame] | 1324 | llvm_unreachable("All cases handled above."); |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 1325 | } |
| 1326 | |
Richard Smith | 975d52c | 2013-02-20 01:17:14 +0000 | [diff] [blame] | 1327 | /// \brief We have found the opening square brackets of a C++11 |
| 1328 | /// attribute-specifier in a location where an attribute is not permitted, but |
| 1329 | /// we know where the attributes ought to be written. Parse them anyway, and |
| 1330 | /// provide a fixit moving them to the right place. |
Richard Smith | 0532140 | 2013-02-19 23:47:15 +0000 | [diff] [blame] | 1331 | void Parser::DiagnoseMisplacedCXX11Attribute(ParsedAttributesWithRange &Attrs, |
| 1332 | SourceLocation CorrectLocation) { |
| 1333 | assert((Tok.is(tok::l_square) && NextToken().is(tok::l_square)) || |
| 1334 | Tok.is(tok::kw_alignas)); |
| 1335 | |
| 1336 | // Consume the attributes. |
| 1337 | SourceLocation Loc = Tok.getLocation(); |
| 1338 | ParseCXX11Attributes(Attrs); |
| 1339 | CharSourceRange AttrRange(SourceRange(Loc, Attrs.Range.getEnd()), true); |
| 1340 | |
| 1341 | Diag(Loc, diag::err_attributes_not_allowed) |
| 1342 | << FixItHint::CreateInsertionFromRange(CorrectLocation, AttrRange) |
| 1343 | << FixItHint::CreateRemoval(AttrRange); |
| 1344 | } |
| 1345 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1346 | void Parser::DiagnoseProhibitedAttributes(ParsedAttributesWithRange &attrs) { |
| 1347 | Diag(attrs.Range.getBegin(), diag::err_attributes_not_allowed) |
| 1348 | << attrs.Range; |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 1349 | } |
| 1350 | |
Michael Han | f64231e | 2012-11-06 19:34:54 +0000 | [diff] [blame] | 1351 | void Parser::ProhibitCXX11Attributes(ParsedAttributesWithRange &attrs) { |
| 1352 | AttributeList *AttrList = attrs.getList(); |
| 1353 | while (AttrList) { |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 1354 | if (AttrList->isCXX11Attribute()) { |
Richard Smith | d03de6a | 2013-01-29 10:02:16 +0000 | [diff] [blame] | 1355 | Diag(AttrList->getLoc(), diag::err_attribute_not_type_attr) |
Michael Han | f64231e | 2012-11-06 19:34:54 +0000 | [diff] [blame] | 1356 | << AttrList->getName(); |
| 1357 | AttrList->setInvalid(); |
| 1358 | } |
| 1359 | AttrList = AttrList->getNext(); |
| 1360 | } |
| 1361 | } |
| 1362 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1363 | /// ParseDeclaration - Parse a full 'declaration', which consists of |
| 1364 | /// declaration-specifiers, some number of declarators, and a semicolon. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1365 | /// 'Context' should be a Declarator::TheContext value. This returns the |
| 1366 | /// location of the semicolon in DeclEnd. |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1367 | /// |
| 1368 | /// declaration: [C99 6.7] |
| 1369 | /// block-declaration -> |
| 1370 | /// simple-declaration |
| 1371 | /// others [FIXME] |
Douglas Gregor | adcac88 | 2008-12-01 23:54:00 +0000 | [diff] [blame] | 1372 | /// [C++] template-declaration |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1373 | /// [C++] namespace-definition |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 1374 | /// [C++] using-directive |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 1375 | /// [C++] using-declaration |
Richard Smith | 534986f | 2012-04-14 00:33:13 +0000 | [diff] [blame] | 1376 | /// [C++11/C11] static_assert-declaration |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1377 | /// others... [FIXME] |
| 1378 | /// |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1379 | Parser::DeclGroupPtrTy Parser::ParseDeclaration(unsigned Context, |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1380 | SourceLocation &DeclEnd, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1381 | ParsedAttributesWithRange &attrs) { |
Argyrios Kyrtzidis | 36d3680 | 2010-06-17 10:52:18 +0000 | [diff] [blame] | 1382 | ParenBraceBracketBalancer BalancerRAIIObj(*this); |
Fariborz Jahanian | e8cff36 | 2011-08-30 17:10:52 +0000 | [diff] [blame] | 1383 | // Must temporarily exit the objective-c container scope for |
| 1384 | // parsing c none objective-c decls. |
| 1385 | ObjCDeclContextSwitch ObjCDC(*this); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1386 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1387 | Decl *SingleDecl = nullptr; |
| 1388 | Decl *OwnedType = nullptr; |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1389 | switch (Tok.getKind()) { |
Douglas Gregor | adcac88 | 2008-12-01 23:54:00 +0000 | [diff] [blame] | 1390 | case tok::kw_template: |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 1391 | case tok::kw_export: |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1392 | ProhibitAttributes(attrs); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1393 | SingleDecl = ParseDeclarationStartingWithTemplate(Context, DeclEnd); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1394 | break; |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 1395 | case tok::kw_inline: |
Sebastian Redl | 88e64ca | 2010-08-31 00:36:45 +0000 | [diff] [blame] | 1396 | // Could be the start of an inline namespace. Allowed as an ext in C++03. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1397 | if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_namespace)) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1398 | ProhibitAttributes(attrs); |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 1399 | SourceLocation InlineLoc = ConsumeToken(); |
| 1400 | SingleDecl = ParseNamespace(Context, DeclEnd, InlineLoc); |
| 1401 | break; |
| 1402 | } |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1403 | return ParseSimpleDeclaration(Context, DeclEnd, attrs, |
Fariborz Jahanian | c5be7b0 | 2010-09-28 20:42:35 +0000 | [diff] [blame] | 1404 | true); |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1405 | case tok::kw_namespace: |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1406 | ProhibitAttributes(attrs); |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1407 | SingleDecl = ParseNamespace(Context, DeclEnd); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1408 | break; |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 1409 | case tok::kw_using: |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 1410 | SingleDecl = ParseUsingDirectiveOrDeclaration(Context, ParsedTemplateInfo(), |
Richard Smith | c89edf5 | 2011-07-01 19:46:12 +0000 | [diff] [blame] | 1411 | DeclEnd, attrs, &OwnedType); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1412 | break; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 1413 | case tok::kw_static_assert: |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 1414 | case tok::kw__Static_assert: |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1415 | ProhibitAttributes(attrs); |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1416 | SingleDecl = ParseStaticAssertDeclaration(DeclEnd); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1417 | break; |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1418 | default: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1419 | return ParseSimpleDeclaration(Context, DeclEnd, attrs, true); |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1420 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1421 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1422 | // This routine returns a DeclGroup, if the thing we parsed only contains a |
Richard Smith | c89edf5 | 2011-07-01 19:46:12 +0000 | [diff] [blame] | 1423 | // single decl, convert it now. Alias declarations can also declare a type; |
| 1424 | // include that too if it is present. |
| 1425 | return Actions.ConvertDeclToDeclGroup(SingleDecl, OwnedType); |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1426 | } |
| 1427 | |
| 1428 | /// simple-declaration: [C99 6.7: declaration] [C++ 7p1: dcl.dcl] |
| 1429 | /// declaration-specifiers init-declarator-list[opt] ';' |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 1430 | /// [C++11] attribute-specifier-seq decl-specifier-seq[opt] |
| 1431 | /// init-declarator-list ';' |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1432 | ///[C90/C++]init-declarator-list ';' [TODO] |
| 1433 | /// [OMP] threadprivate-directive [TODO] |
Chris Lattner | cd14775 | 2009-03-29 17:27:48 +0000 | [diff] [blame] | 1434 | /// |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 1435 | /// for-range-declaration: [C++11 6.5p1: stmt.ranged] |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1436 | /// attribute-specifier-seq[opt] type-specifier-seq declarator |
| 1437 | /// |
Chris Lattner | cd14775 | 2009-03-29 17:27:48 +0000 | [diff] [blame] | 1438 | /// If RequireSemi is false, this does not check for a ';' at the end of the |
Chris Lattner | 5c5db55 | 2010-04-05 18:18:31 +0000 | [diff] [blame] | 1439 | /// declaration. If it is true, it checks for and eats it. |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1440 | /// |
| 1441 | /// If FRI is non-null, we might be parsing a for-range-declaration instead |
| 1442 | /// of a simple-declaration. If we find that we are, we also parse the |
| 1443 | /// for-range-initializer, and place it here. |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 1444 | Parser::DeclGroupPtrTy |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1445 | Parser::ParseSimpleDeclaration(unsigned Context, |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 1446 | SourceLocation &DeclEnd, |
Richard Smith | 68ea3ae | 2013-02-22 09:06:26 +0000 | [diff] [blame] | 1447 | ParsedAttributesWithRange &Attrs, |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 1448 | bool RequireSemi, ForRangeInit *FRI) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1449 | // Parse the common declaration-specifiers piece. |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1450 | ParsingDeclSpec DS(*this); |
Douglas Gregor | 312eadb | 2011-04-24 05:37:28 +0000 | [diff] [blame] | 1451 | |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 1452 | DeclSpecContext DSContext = getDeclSpecContextFromDeclaratorContext(Context); |
| 1453 | ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS_none, DSContext); |
| 1454 | |
| 1455 | // If we had a free-standing type definition with a missing semicolon, we |
| 1456 | // may get this far before the problem becomes obvious. |
| 1457 | if (DS.hasTagDefinition() && |
| 1458 | DiagnoseMissingSemiAfterTagDefinition(DS, AS_none, DSContext)) |
| 1459 | return DeclGroupPtrTy(); |
Abramo Bagnara | 06284c1 | 2012-01-07 10:52:36 +0000 | [diff] [blame] | 1460 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1461 | // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" |
| 1462 | // declaration-specifiers init-declarator-list[opt] ';' |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 1463 | if (Tok.is(tok::semi)) { |
Richard Smith | 68ea3ae | 2013-02-22 09:06:26 +0000 | [diff] [blame] | 1464 | ProhibitAttributes(Attrs); |
Argyrios Kyrtzidis | 5641b0d | 2012-05-16 23:49:15 +0000 | [diff] [blame] | 1465 | DeclEnd = Tok.getLocation(); |
Chris Lattner | 5c5db55 | 2010-04-05 18:18:31 +0000 | [diff] [blame] | 1466 | if (RequireSemi) ConsumeToken(); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1467 | Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS_none, |
Douglas Gregor | 312eadb | 2011-04-24 05:37:28 +0000 | [diff] [blame] | 1468 | DS); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1469 | DS.complete(TheDecl); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1470 | return Actions.ConvertDeclToDeclGroup(TheDecl); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1471 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1472 | |
Richard Smith | 68ea3ae | 2013-02-22 09:06:26 +0000 | [diff] [blame] | 1473 | DS.takeAttributesFrom(Attrs); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 1474 | return ParseDeclGroup(DS, Context, &DeclEnd, FRI); |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1475 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1476 | |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 1477 | /// Returns true if this might be the start of a declarator, or a common typo |
| 1478 | /// for a declarator. |
| 1479 | bool Parser::MightBeDeclarator(unsigned Context) { |
| 1480 | switch (Tok.getKind()) { |
| 1481 | case tok::annot_cxxscope: |
| 1482 | case tok::annot_template_id: |
| 1483 | case tok::caret: |
| 1484 | case tok::code_completion: |
| 1485 | case tok::coloncolon: |
| 1486 | case tok::ellipsis: |
| 1487 | case tok::kw___attribute: |
| 1488 | case tok::kw_operator: |
| 1489 | case tok::l_paren: |
| 1490 | case tok::star: |
| 1491 | return true; |
| 1492 | |
| 1493 | case tok::amp: |
| 1494 | case tok::ampamp: |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1495 | return getLangOpts().CPlusPlus; |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 1496 | |
Richard Smith | 1c94c16 | 2012-01-09 22:31:44 +0000 | [diff] [blame] | 1497 | case tok::l_square: // Might be an attribute on an unnamed bit-field. |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1498 | return Context == Declarator::MemberContext && getLangOpts().CPlusPlus11 && |
Richard Smith | 1c94c16 | 2012-01-09 22:31:44 +0000 | [diff] [blame] | 1499 | NextToken().is(tok::l_square); |
| 1500 | |
| 1501 | case tok::colon: // Might be a typo for '::' or an unnamed bit-field. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1502 | return Context == Declarator::MemberContext || getLangOpts().CPlusPlus; |
Richard Smith | 1c94c16 | 2012-01-09 22:31:44 +0000 | [diff] [blame] | 1503 | |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 1504 | case tok::identifier: |
| 1505 | switch (NextToken().getKind()) { |
| 1506 | case tok::code_completion: |
| 1507 | case tok::coloncolon: |
| 1508 | case tok::comma: |
| 1509 | case tok::equal: |
| 1510 | case tok::equalequal: // Might be a typo for '='. |
| 1511 | case tok::kw_alignas: |
| 1512 | case tok::kw_asm: |
| 1513 | case tok::kw___attribute: |
| 1514 | case tok::l_brace: |
| 1515 | case tok::l_paren: |
| 1516 | case tok::l_square: |
| 1517 | case tok::less: |
| 1518 | case tok::r_brace: |
| 1519 | case tok::r_paren: |
| 1520 | case tok::r_square: |
| 1521 | case tok::semi: |
| 1522 | return true; |
| 1523 | |
| 1524 | case tok::colon: |
| 1525 | // At namespace scope, 'identifier:' is probably a typo for 'identifier::' |
Richard Smith | 1c94c16 | 2012-01-09 22:31:44 +0000 | [diff] [blame] | 1526 | // and in block scope it's probably a label. Inside a class definition, |
| 1527 | // this is a bit-field. |
| 1528 | return Context == Declarator::MemberContext || |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1529 | (getLangOpts().CPlusPlus && Context == Declarator::FileContext); |
Richard Smith | 1c94c16 | 2012-01-09 22:31:44 +0000 | [diff] [blame] | 1530 | |
| 1531 | case tok::identifier: // Possible virt-specifier. |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 1532 | return getLangOpts().CPlusPlus11 && isCXX11VirtSpecifier(NextToken()); |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 1533 | |
| 1534 | default: |
| 1535 | return false; |
| 1536 | } |
| 1537 | |
| 1538 | default: |
| 1539 | return false; |
| 1540 | } |
| 1541 | } |
| 1542 | |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1543 | /// Skip until we reach something which seems like a sensible place to pick |
| 1544 | /// up parsing after a malformed declaration. This will sometimes stop sooner |
| 1545 | /// than SkipUntil(tok::r_brace) would, but will never stop later. |
| 1546 | void Parser::SkipMalformedDecl() { |
| 1547 | while (true) { |
| 1548 | switch (Tok.getKind()) { |
| 1549 | case tok::l_brace: |
| 1550 | // Skip until matching }, then stop. We've probably skipped over |
| 1551 | // a malformed class or function definition or similar. |
| 1552 | ConsumeBrace(); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 1553 | SkipUntil(tok::r_brace); |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1554 | if (Tok.is(tok::comma) || Tok.is(tok::l_brace) || Tok.is(tok::kw_try)) { |
| 1555 | // This declaration isn't over yet. Keep skipping. |
| 1556 | continue; |
| 1557 | } |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1558 | TryConsumeToken(tok::semi); |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1559 | return; |
| 1560 | |
| 1561 | case tok::l_square: |
| 1562 | ConsumeBracket(); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 1563 | SkipUntil(tok::r_square); |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1564 | continue; |
| 1565 | |
| 1566 | case tok::l_paren: |
| 1567 | ConsumeParen(); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 1568 | SkipUntil(tok::r_paren); |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1569 | continue; |
| 1570 | |
| 1571 | case tok::r_brace: |
| 1572 | return; |
| 1573 | |
| 1574 | case tok::semi: |
| 1575 | ConsumeToken(); |
| 1576 | return; |
| 1577 | |
| 1578 | case tok::kw_inline: |
| 1579 | // 'inline namespace' at the start of a line is almost certainly |
Jordan Rose | 94f29f4 | 2012-07-09 16:54:53 +0000 | [diff] [blame] | 1580 | // a good place to pick back up parsing, except in an Objective-C |
| 1581 | // @interface context. |
| 1582 | if (Tok.isAtStartOfLine() && NextToken().is(tok::kw_namespace) && |
| 1583 | (!ParsingInObjCContainer || CurParsedObjCImpl)) |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1584 | return; |
| 1585 | break; |
| 1586 | |
| 1587 | case tok::kw_namespace: |
| 1588 | // 'namespace' at the start of a line is almost certainly a good |
Jordan Rose | 94f29f4 | 2012-07-09 16:54:53 +0000 | [diff] [blame] | 1589 | // place to pick back up parsing, except in an Objective-C |
| 1590 | // @interface context. |
| 1591 | if (Tok.isAtStartOfLine() && |
| 1592 | (!ParsingInObjCContainer || CurParsedObjCImpl)) |
| 1593 | return; |
| 1594 | break; |
| 1595 | |
| 1596 | case tok::at: |
| 1597 | // @end is very much like } in Objective-C contexts. |
| 1598 | if (NextToken().isObjCAtKeyword(tok::objc_end) && |
| 1599 | ParsingInObjCContainer) |
| 1600 | return; |
| 1601 | break; |
| 1602 | |
| 1603 | case tok::minus: |
| 1604 | case tok::plus: |
| 1605 | // - and + probably start new method declarations in Objective-C contexts. |
| 1606 | if (Tok.isAtStartOfLine() && ParsingInObjCContainer) |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1607 | return; |
| 1608 | break; |
| 1609 | |
| 1610 | case tok::eof: |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1611 | case tok::annot_module_begin: |
| 1612 | case tok::annot_module_end: |
| 1613 | case tok::annot_module_include: |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1614 | return; |
| 1615 | |
| 1616 | default: |
| 1617 | break; |
| 1618 | } |
| 1619 | |
| 1620 | ConsumeAnyToken(); |
| 1621 | } |
| 1622 | } |
| 1623 | |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1624 | /// ParseDeclGroup - Having concluded that this is either a function |
| 1625 | /// definition or a group of object declarations, actually parse the |
| 1626 | /// result. |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1627 | Parser::DeclGroupPtrTy Parser::ParseDeclGroup(ParsingDeclSpec &DS, |
| 1628 | unsigned Context, |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1629 | SourceLocation *DeclEnd, |
| 1630 | ForRangeInit *FRI) { |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1631 | // Parse the first declarator. |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1632 | ParsingDeclarator D(*this, DS, static_cast<Declarator::TheContext>(Context)); |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1633 | ParseDeclarator(D); |
Chris Lattner | cd14775 | 2009-03-29 17:27:48 +0000 | [diff] [blame] | 1634 | |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1635 | // Bail out if the first declarator didn't seem well-formed. |
| 1636 | if (!D.hasName() && !D.mayOmitIdentifier()) { |
Richard Smith | 994d73f | 2012-04-11 20:59:20 +0000 | [diff] [blame] | 1637 | SkipMalformedDecl(); |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1638 | return DeclGroupPtrTy(); |
Chris Lattner | 23c4b18 | 2009-03-29 17:18:04 +0000 | [diff] [blame] | 1639 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1640 | |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1641 | // Save late-parsed attributes for now; they need to be parsed in the |
| 1642 | // appropriate function scope after the function Decl has been constructed. |
DeLesley Hutchins | 161db02 | 2012-11-02 21:44:32 +0000 | [diff] [blame] | 1643 | // These will be parsed in ParseFunctionDefinition or ParseLexedAttrList. |
| 1644 | LateParsedAttrList LateParsedAttrs(true); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1645 | if (D.isFunctionDeclarator()) { |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1646 | MaybeParseGNUAttributes(D, &LateParsedAttrs); |
| 1647 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1648 | // The _Noreturn keyword can't appear here, unlike the GNU noreturn |
| 1649 | // attribute. If we find the keyword here, tell the user to put it |
| 1650 | // at the start instead. |
| 1651 | if (Tok.is(tok::kw__Noreturn)) { |
| 1652 | SourceLocation Loc = ConsumeToken(); |
| 1653 | const char *PrevSpec; |
| 1654 | unsigned DiagID; |
| 1655 | |
| 1656 | // We can offer a fixit if it's valid to mark this function as _Noreturn |
| 1657 | // and we don't have any other declarators in this declaration. |
| 1658 | bool Fixit = !DS.setFunctionSpecNoreturn(Loc, PrevSpec, DiagID); |
| 1659 | MaybeParseGNUAttributes(D, &LateParsedAttrs); |
| 1660 | Fixit &= Tok.is(tok::semi) || Tok.is(tok::l_brace) || Tok.is(tok::kw_try); |
| 1661 | |
| 1662 | Diag(Loc, diag::err_c11_noreturn_misplaced) |
| 1663 | << (Fixit ? FixItHint::CreateRemoval(Loc) : FixItHint()) |
| 1664 | << (Fixit ? FixItHint::CreateInsertion(D.getLocStart(), "_Noreturn ") |
| 1665 | : FixItHint()); |
| 1666 | } |
| 1667 | } |
| 1668 | |
Chris Lattner | c82daef | 2010-07-11 22:24:20 +0000 | [diff] [blame] | 1669 | // Check to see if we have a function *definition* which must have a body. |
Douglas Gregor | b004a8e | 2013-04-16 16:01:32 +0000 | [diff] [blame] | 1670 | if (D.isFunctionDeclarator() && |
Chris Lattner | c82daef | 2010-07-11 22:24:20 +0000 | [diff] [blame] | 1671 | // Look at the next token to make sure that this isn't a function |
| 1672 | // declaration. We have to check this because __attribute__ might be the |
| 1673 | // start of a function definition in GCC-extended K&R C. |
Fariborz Jahanian | be1d4ec | 2012-08-10 15:54:40 +0000 | [diff] [blame] | 1674 | !isDeclarationAfterDeclarator()) { |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1675 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 1676 | // Function definitions are only allowed at file scope and in C++ classes. |
| 1677 | // The C++ inline method definition case is handled elsewhere, so we only |
| 1678 | // need to handle the file scope definition case. |
| 1679 | if (Context == Declarator::FileContext) { |
Douglas Gregor | b004a8e | 2013-04-16 16:01:32 +0000 | [diff] [blame] | 1680 | if (isStartOfFunctionDefinition(D)) { |
| 1681 | if (DS.getStorageClassSpec() == DeclSpec::SCS_typedef) { |
| 1682 | Diag(Tok, diag::err_function_declared_typedef); |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1683 | |
Douglas Gregor | b004a8e | 2013-04-16 16:01:32 +0000 | [diff] [blame] | 1684 | // Recover by treating the 'typedef' as spurious. |
| 1685 | DS.ClearStorageClassSpecs(); |
| 1686 | } |
| 1687 | |
| 1688 | Decl *TheDecl = |
| 1689 | ParseFunctionDefinition(D, ParsedTemplateInfo(), &LateParsedAttrs); |
| 1690 | return Actions.ConvertDeclToDeclGroup(TheDecl); |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1691 | } |
| 1692 | |
Douglas Gregor | b004a8e | 2013-04-16 16:01:32 +0000 | [diff] [blame] | 1693 | if (isDeclarationSpecifier()) { |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 1694 | // If there is an invalid declaration specifier right after the |
| 1695 | // function prototype, then we must be in a missing semicolon case |
| 1696 | // where this isn't actually a body. Just fall through into the code |
| 1697 | // that handles it as a prototype, and let the top-level code handle |
| 1698 | // the erroneous declspec where it would otherwise expect a comma or |
| 1699 | // semicolon. |
Douglas Gregor | b004a8e | 2013-04-16 16:01:32 +0000 | [diff] [blame] | 1700 | } else { |
| 1701 | Diag(Tok, diag::err_expected_fn_body); |
| 1702 | SkipUntil(tok::semi); |
| 1703 | return DeclGroupPtrTy(); |
| 1704 | } |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1705 | } else { |
Douglas Gregor | b004a8e | 2013-04-16 16:01:32 +0000 | [diff] [blame] | 1706 | if (Tok.is(tok::l_brace)) { |
| 1707 | Diag(Tok, diag::err_function_definition_not_allowed); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1708 | SkipMalformedDecl(); |
| 1709 | return DeclGroupPtrTy(); |
Douglas Gregor | b004a8e | 2013-04-16 16:01:32 +0000 | [diff] [blame] | 1710 | } |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1711 | } |
| 1712 | } |
| 1713 | |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1714 | if (ParseAsmAttributesAfterDeclarator(D)) |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1715 | return DeclGroupPtrTy(); |
| 1716 | |
| 1717 | // C++0x [stmt.iter]p1: Check if we have a for-range-declarator. If so, we |
| 1718 | // must parse and analyze the for-range-initializer before the declaration is |
| 1719 | // analyzed. |
Douglas Gregor | 12849d0 | 2013-04-08 20:52:24 +0000 | [diff] [blame] | 1720 | // |
| 1721 | // Handle the Objective-C for-in loop variable similarly, although we |
| 1722 | // don't need to parse the container in advance. |
| 1723 | if (FRI && (Tok.is(tok::colon) || isTokIdentifier_in())) { |
| 1724 | bool IsForRangeLoop = false; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1725 | if (TryConsumeToken(tok::colon, FRI->ColonLoc)) { |
Douglas Gregor | 12849d0 | 2013-04-08 20:52:24 +0000 | [diff] [blame] | 1726 | IsForRangeLoop = true; |
Douglas Gregor | 12849d0 | 2013-04-08 20:52:24 +0000 | [diff] [blame] | 1727 | if (Tok.is(tok::l_brace)) |
| 1728 | FRI->RangeExpr = ParseBraceInitializer(); |
| 1729 | else |
| 1730 | FRI->RangeExpr = ParseExpression(); |
| 1731 | } |
| 1732 | |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1733 | Decl *ThisDecl = Actions.ActOnDeclarator(getCurScope(), D); |
Douglas Gregor | 12849d0 | 2013-04-08 20:52:24 +0000 | [diff] [blame] | 1734 | if (IsForRangeLoop) |
| 1735 | Actions.ActOnCXXForRangeDecl(ThisDecl); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1736 | Actions.FinalizeDeclaration(ThisDecl); |
John McCall | 6895a64 | 2012-01-27 01:29:43 +0000 | [diff] [blame] | 1737 | D.complete(ThisDecl); |
Rafael Espindola | 4549d7f | 2013-07-09 12:05:01 +0000 | [diff] [blame] | 1738 | return Actions.FinalizeDeclaratorGroup(getCurScope(), DS, ThisDecl); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1739 | } |
| 1740 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1741 | SmallVector<Decl *, 8> DeclsInGroup; |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1742 | Decl *FirstDecl = ParseDeclarationAfterDeclaratorAndAttributes( |
| 1743 | D, ParsedTemplateInfo(), FRI); |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1744 | if (LateParsedAttrs.size() > 0) |
| 1745 | ParseLexedAttributeList(LateParsedAttrs, FirstDecl, true, false); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1746 | D.complete(FirstDecl); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1747 | if (FirstDecl) |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1748 | DeclsInGroup.push_back(FirstDecl); |
| 1749 | |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 1750 | bool ExpectSemi = Context != Declarator::ForContext; |
Fariborz Jahanian | 6c89eaf | 2012-07-02 23:37:09 +0000 | [diff] [blame] | 1751 | |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1752 | // If we don't have a comma, it is either the end of the list (a ';') or an |
| 1753 | // error, bail out. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1754 | SourceLocation CommaLoc; |
| 1755 | while (TryConsumeToken(tok::comma, CommaLoc)) { |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 1756 | if (Tok.isAtStartOfLine() && ExpectSemi && !MightBeDeclarator(Context)) { |
| 1757 | // This comma was followed by a line-break and something which can't be |
| 1758 | // the start of a declarator. The comma was probably a typo for a |
| 1759 | // semicolon. |
| 1760 | Diag(CommaLoc, diag::err_expected_semi_declaration) |
| 1761 | << FixItHint::CreateReplacement(CommaLoc, ";"); |
| 1762 | ExpectSemi = false; |
| 1763 | break; |
| 1764 | } |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1765 | |
| 1766 | // Parse the next declarator. |
| 1767 | D.clear(); |
Richard Smith | 7984de3 | 2012-01-12 23:53:29 +0000 | [diff] [blame] | 1768 | D.setCommaLoc(CommaLoc); |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1769 | |
| 1770 | // Accept attributes in an init-declarator. In the first declarator in a |
| 1771 | // declaration, these would be part of the declspec. In subsequent |
| 1772 | // declarators, they become part of the declarator itself, so that they |
| 1773 | // don't apply to declarators after *this* one. Examples: |
| 1774 | // short __attribute__((common)) var; -> declspec |
| 1775 | // short var __attribute__((common)); -> declarator |
| 1776 | // short x, __attribute__((common)) var; -> declarator |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1777 | MaybeParseGNUAttributes(D); |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1778 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 1779 | // MSVC parses but ignores qualifiers after the comma as an extension. |
| 1780 | if (getLangOpts().MicrosoftExt) |
| 1781 | DiagnoseAndSkipExtendedMicrosoftTypeAttributes(); |
| 1782 | |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1783 | ParseDeclarator(D); |
Fariborz Jahanian | 9baf39d | 2012-01-13 00:14:12 +0000 | [diff] [blame] | 1784 | if (!D.isInvalidType()) { |
| 1785 | Decl *ThisDecl = ParseDeclarationAfterDeclarator(D); |
| 1786 | D.complete(ThisDecl); |
| 1787 | if (ThisDecl) |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1788 | DeclsInGroup.push_back(ThisDecl); |
Fariborz Jahanian | 9baf39d | 2012-01-13 00:14:12 +0000 | [diff] [blame] | 1789 | } |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1790 | } |
| 1791 | |
| 1792 | if (DeclEnd) |
| 1793 | *DeclEnd = Tok.getLocation(); |
| 1794 | |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 1795 | if (ExpectSemi && |
Chris Lattner | 8bb21d3 | 2012-04-28 16:12:17 +0000 | [diff] [blame] | 1796 | ExpectAndConsumeSemi(Context == Declarator::FileContext |
| 1797 | ? diag::err_invalid_token_after_toplevel_declarator |
| 1798 | : diag::err_expected_semi_declaration)) { |
Chris Lattner | 004659a | 2010-07-11 22:42:07 +0000 | [diff] [blame] | 1799 | // Okay, there was no semicolon and one was expected. If we see a |
| 1800 | // declaration specifier, just assume it was missing and continue parsing. |
| 1801 | // Otherwise things are very confused and we skip to recover. |
| 1802 | if (!isDeclarationSpecifier()) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 1803 | SkipUntil(tok::r_brace, StopAtSemi | StopBeforeMatch); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1804 | TryConsumeToken(tok::semi); |
Chris Lattner | 004659a | 2010-07-11 22:42:07 +0000 | [diff] [blame] | 1805 | } |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 1806 | } |
| 1807 | |
Rafael Espindola | 4549d7f | 2013-07-09 12:05:01 +0000 | [diff] [blame] | 1808 | return Actions.FinalizeDeclaratorGroup(getCurScope(), DS, DeclsInGroup); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1809 | } |
| 1810 | |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1811 | /// Parse an optional simple-asm-expr and attributes, and attach them to a |
| 1812 | /// declarator. Returns true on an error. |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1813 | bool Parser::ParseAsmAttributesAfterDeclarator(Declarator &D) { |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1814 | // If a simple-asm-expr is present, parse it. |
| 1815 | if (Tok.is(tok::kw_asm)) { |
| 1816 | SourceLocation Loc; |
| 1817 | ExprResult AsmLabel(ParseSimpleAsm(&Loc)); |
| 1818 | if (AsmLabel.isInvalid()) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 1819 | SkipUntil(tok::semi, StopBeforeMatch); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1820 | return true; |
| 1821 | } |
| 1822 | |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 1823 | D.setAsmLabel(AsmLabel.get()); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1824 | D.SetRangeEnd(Loc); |
| 1825 | } |
| 1826 | |
| 1827 | MaybeParseGNUAttributes(D); |
| 1828 | return false; |
| 1829 | } |
| 1830 | |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 1831 | /// \brief Parse 'declaration' after parsing 'declaration-specifiers |
| 1832 | /// declarator'. This method parses the remainder of the declaration |
| 1833 | /// (including any attributes or initializer, among other things) and |
| 1834 | /// finalizes the declaration. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1835 | /// |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1836 | /// init-declarator: [C99 6.7] |
| 1837 | /// declarator |
| 1838 | /// declarator '=' initializer |
| 1839 | /// [GNU] declarator simple-asm-expr[opt] attributes[opt] |
| 1840 | /// [GNU] declarator simple-asm-expr[opt] attributes[opt] '=' initializer |
Argyrios Kyrtzidis | 73a0d88 | 2008-10-06 17:10:33 +0000 | [diff] [blame] | 1841 | /// [C++] declarator initializer[opt] |
| 1842 | /// |
| 1843 | /// [C++] initializer: |
| 1844 | /// [C++] '=' initializer-clause |
| 1845 | /// [C++] '(' expression-list ')' |
Sebastian Redl | 50de12f | 2009-03-24 22:27:57 +0000 | [diff] [blame] | 1846 | /// [C++0x] '=' 'default' [TODO] |
| 1847 | /// [C++0x] '=' 'delete' |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 1848 | /// [C++0x] braced-init-list |
Sebastian Redl | 50de12f | 2009-03-24 22:27:57 +0000 | [diff] [blame] | 1849 | /// |
| 1850 | /// According to the standard grammar, =default and =delete are function |
| 1851 | /// definitions, but that definitely doesn't fit with the parser here. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1852 | /// |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1853 | Decl *Parser::ParseDeclarationAfterDeclarator( |
| 1854 | Declarator &D, const ParsedTemplateInfo &TemplateInfo) { |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1855 | if (ParseAsmAttributesAfterDeclarator(D)) |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1856 | return nullptr; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1857 | |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 1858 | return ParseDeclarationAfterDeclaratorAndAttributes(D, TemplateInfo); |
| 1859 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1860 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1861 | Decl *Parser::ParseDeclarationAfterDeclaratorAndAttributes( |
| 1862 | Declarator &D, const ParsedTemplateInfo &TemplateInfo, ForRangeInit *FRI) { |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 1863 | // Inform the current actions module that we just parsed this declarator. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1864 | Decl *ThisDecl = nullptr; |
Douglas Gregor | d5a423b | 2009-09-25 18:43:00 +0000 | [diff] [blame] | 1865 | switch (TemplateInfo.Kind) { |
| 1866 | case ParsedTemplateInfo::NonTemplate: |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1867 | ThisDecl = Actions.ActOnDeclarator(getCurScope(), D); |
Douglas Gregor | d5a423b | 2009-09-25 18:43:00 +0000 | [diff] [blame] | 1868 | break; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1869 | |
Douglas Gregor | d5a423b | 2009-09-25 18:43:00 +0000 | [diff] [blame] | 1870 | case ParsedTemplateInfo::Template: |
Larisse Voufo | ef4579c | 2013-08-06 01:03:05 +0000 | [diff] [blame] | 1871 | case ParsedTemplateInfo::ExplicitSpecialization: { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1872 | ThisDecl = Actions.ActOnTemplateDeclarator(getCurScope(), |
Benjamin Kramer | 5354e77 | 2012-08-23 23:38:35 +0000 | [diff] [blame] | 1873 | *TemplateInfo.TemplateParams, |
Douglas Gregor | d5a423b | 2009-09-25 18:43:00 +0000 | [diff] [blame] | 1874 | D); |
Larisse Voufo | 2521813 | 2013-08-06 07:33:00 +0000 | [diff] [blame] | 1875 | if (VarTemplateDecl *VT = dyn_cast_or_null<VarTemplateDecl>(ThisDecl)) |
Larisse Voufo | ef4579c | 2013-08-06 01:03:05 +0000 | [diff] [blame] | 1876 | // Re-direct this decl to refer to the templated decl so that we can |
| 1877 | // initialize it. |
| 1878 | ThisDecl = VT->getTemplatedDecl(); |
| 1879 | break; |
| 1880 | } |
| 1881 | case ParsedTemplateInfo::ExplicitInstantiation: { |
| 1882 | if (Tok.is(tok::semi)) { |
| 1883 | DeclResult ThisRes = Actions.ActOnExplicitInstantiation( |
| 1884 | getCurScope(), TemplateInfo.ExternLoc, TemplateInfo.TemplateLoc, D); |
| 1885 | if (ThisRes.isInvalid()) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 1886 | SkipUntil(tok::semi, StopBeforeMatch); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1887 | return nullptr; |
Larisse Voufo | ef4579c | 2013-08-06 01:03:05 +0000 | [diff] [blame] | 1888 | } |
| 1889 | ThisDecl = ThisRes.get(); |
| 1890 | } else { |
| 1891 | // FIXME: This check should be for a variable template instantiation only. |
| 1892 | |
| 1893 | // Check that this is a valid instantiation |
| 1894 | if (D.getName().getKind() != UnqualifiedId::IK_TemplateId) { |
| 1895 | // If the declarator-id is not a template-id, issue a diagnostic and |
| 1896 | // recover by ignoring the 'template' keyword. |
| 1897 | Diag(Tok, diag::err_template_defn_explicit_instantiation) |
| 1898 | << 2 << FixItHint::CreateRemoval(TemplateInfo.TemplateLoc); |
| 1899 | ThisDecl = Actions.ActOnDeclarator(getCurScope(), D); |
| 1900 | } else { |
| 1901 | SourceLocation LAngleLoc = |
| 1902 | PP.getLocForEndOfToken(TemplateInfo.TemplateLoc); |
| 1903 | Diag(D.getIdentifierLoc(), |
| 1904 | diag::err_explicit_instantiation_with_definition) |
| 1905 | << SourceRange(TemplateInfo.TemplateLoc) |
| 1906 | << FixItHint::CreateInsertion(LAngleLoc, "<>"); |
| 1907 | |
| 1908 | // Recover as if it were an explicit specialization. |
| 1909 | TemplateParameterLists FakedParamLists; |
| 1910 | FakedParamLists.push_back(Actions.ActOnTemplateParameterList( |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1911 | 0, SourceLocation(), TemplateInfo.TemplateLoc, LAngleLoc, nullptr, |
| 1912 | 0, LAngleLoc)); |
Larisse Voufo | ef4579c | 2013-08-06 01:03:05 +0000 | [diff] [blame] | 1913 | |
| 1914 | ThisDecl = |
| 1915 | Actions.ActOnTemplateDeclarator(getCurScope(), FakedParamLists, D); |
| 1916 | } |
| 1917 | } |
Douglas Gregor | d5a423b | 2009-09-25 18:43:00 +0000 | [diff] [blame] | 1918 | break; |
| 1919 | } |
| 1920 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1921 | |
Richard Smith | a2c3646 | 2013-04-26 16:15:35 +0000 | [diff] [blame] | 1922 | bool TypeContainsAuto = D.getDeclSpec().containsPlaceholderType(); |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 1923 | |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 1924 | // Parse declarator '=' initializer. |
Richard Trieu | d6c7c67 | 2012-01-18 22:54:52 +0000 | [diff] [blame] | 1925 | // If a '==' or '+=' is found, suggest a fixit to '='. |
Richard Trieu | fcaf27e | 2012-01-19 22:01:51 +0000 | [diff] [blame] | 1926 | if (isTokenEqualOrEqualTypo()) { |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1927 | SourceLocation EqualLoc = ConsumeToken(); |
Larisse Voufo | ef4579c | 2013-08-06 01:03:05 +0000 | [diff] [blame] | 1928 | |
Anders Carlsson | 37bf9d2 | 2010-09-24 21:25:25 +0000 | [diff] [blame] | 1929 | if (Tok.is(tok::kw_delete)) { |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1930 | if (D.isFunctionDeclarator()) |
| 1931 | Diag(ConsumeToken(), diag::err_default_delete_in_multiple_declaration) |
| 1932 | << 1 /* delete */; |
| 1933 | else |
| 1934 | Diag(ConsumeToken(), diag::err_deleted_non_function); |
Sean Hunt | fe2695e | 2011-05-06 01:42:00 +0000 | [diff] [blame] | 1935 | } else if (Tok.is(tok::kw_default)) { |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1936 | if (D.isFunctionDeclarator()) |
Sebastian Redl | ecfcd56 | 2012-02-11 23:51:21 +0000 | [diff] [blame] | 1937 | Diag(ConsumeToken(), diag::err_default_delete_in_multiple_declaration) |
| 1938 | << 0 /* default */; |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1939 | else |
| 1940 | Diag(ConsumeToken(), diag::err_default_special_members); |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 1941 | } else { |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1942 | if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) { |
John McCall | 731ad84 | 2009-12-19 09:28:58 +0000 | [diff] [blame] | 1943 | EnterScope(0); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1944 | Actions.ActOnCXXEnterDeclInitializer(getCurScope(), ThisDecl); |
John McCall | 731ad84 | 2009-12-19 09:28:58 +0000 | [diff] [blame] | 1945 | } |
Argyrios Kyrtzidis | 0ffd9ff | 2009-06-17 22:50:06 +0000 | [diff] [blame] | 1946 | |
Douglas Gregor | 5ac3bdb | 2010-05-30 01:49:25 +0000 | [diff] [blame] | 1947 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1948 | Actions.CodeCompleteInitializer(getCurScope(), ThisDecl); |
Peter Collingbourne | ec98f2f | 2012-07-27 12:56:09 +0000 | [diff] [blame] | 1949 | Actions.FinalizeDeclaration(ThisDecl); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 1950 | cutOffParsing(); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1951 | return nullptr; |
Douglas Gregor | 5ac3bdb | 2010-05-30 01:49:25 +0000 | [diff] [blame] | 1952 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 1953 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1954 | ExprResult Init(ParseInitializer()); |
Argyrios Kyrtzidis | 0ffd9ff | 2009-06-17 22:50:06 +0000 | [diff] [blame] | 1955 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1956 | // If this is the only decl in (possibly) range based for statement, |
| 1957 | // our best guess is that the user meant ':' instead of '='. |
| 1958 | if (Tok.is(tok::r_paren) && FRI && D.isFirstDeclarator()) { |
| 1959 | Diag(EqualLoc, diag::err_single_decl_assign_in_for_range) |
| 1960 | << FixItHint::CreateReplacement(EqualLoc, ":"); |
| 1961 | // We are trying to stop parser from looking for ';' in this for |
| 1962 | // statement, therefore preventing spurious errors to be issued. |
| 1963 | FRI->ColonLoc = EqualLoc; |
| 1964 | Init = ExprError(); |
| 1965 | FRI->RangeExpr = Init; |
| 1966 | } |
| 1967 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1968 | if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1969 | Actions.ActOnCXXExitDeclInitializer(getCurScope(), ThisDecl); |
John McCall | 731ad84 | 2009-12-19 09:28:58 +0000 | [diff] [blame] | 1970 | ExitScope(); |
| 1971 | } |
Argyrios Kyrtzidis | 0ffd9ff | 2009-06-17 22:50:06 +0000 | [diff] [blame] | 1972 | |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 1973 | if (Init.isInvalid()) { |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 1974 | SmallVector<tok::TokenKind, 2> StopTokens; |
| 1975 | StopTokens.push_back(tok::comma); |
| 1976 | if (D.getContext() == Declarator::ForContext) |
| 1977 | StopTokens.push_back(tok::r_paren); |
| 1978 | SkipUntil(StopTokens, StopAtSemi | StopBeforeMatch); |
Douglas Gregor | 0022554 | 2010-03-01 18:27:54 +0000 | [diff] [blame] | 1979 | Actions.ActOnInitializerError(ThisDecl); |
| 1980 | } else |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 1981 | Actions.AddInitializerToDecl(ThisDecl, Init.get(), |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 1982 | /*DirectInit=*/false, TypeContainsAuto); |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 1983 | } |
| 1984 | } else if (Tok.is(tok::l_paren)) { |
| 1985 | // Parse C++ direct initializer: '(' expression-list ')' |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1986 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 1987 | T.consumeOpen(); |
| 1988 | |
Benjamin Kramer | 4e28d9e | 2012-08-23 22:51:59 +0000 | [diff] [blame] | 1989 | ExprVector Exprs; |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 1990 | CommaLocsTy CommaLocs; |
| 1991 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1992 | if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) { |
Douglas Gregor | b4debae | 2009-12-22 17:47:17 +0000 | [diff] [blame] | 1993 | EnterScope(0); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1994 | Actions.ActOnCXXEnterDeclInitializer(getCurScope(), ThisDecl); |
Douglas Gregor | b4debae | 2009-12-22 17:47:17 +0000 | [diff] [blame] | 1995 | } |
| 1996 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 1997 | if (ParseExpressionList(Exprs, CommaLocs, [&] { |
| 1998 | Actions.CodeCompleteConstructor(getCurScope(), |
| 1999 | cast<VarDecl>(ThisDecl)->getType()->getCanonicalTypeInternal(), |
| 2000 | ThisDecl->getLocation(), Exprs); |
| 2001 | })) { |
David Blaikie | 3ea19c8 | 2012-10-10 23:15:05 +0000 | [diff] [blame] | 2002 | Actions.ActOnInitializerError(ThisDecl); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 2003 | SkipUntil(tok::r_paren, StopAtSemi); |
Douglas Gregor | b4debae | 2009-12-22 17:47:17 +0000 | [diff] [blame] | 2004 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 2005 | if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2006 | Actions.ActOnCXXExitDeclInitializer(getCurScope(), ThisDecl); |
Douglas Gregor | b4debae | 2009-12-22 17:47:17 +0000 | [diff] [blame] | 2007 | ExitScope(); |
| 2008 | } |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 2009 | } else { |
| 2010 | // Match the ')'. |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 2011 | T.consumeClose(); |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 2012 | |
| 2013 | assert(!Exprs.empty() && Exprs.size()-1 == CommaLocs.size() && |
| 2014 | "Unexpected number of commas!"); |
Douglas Gregor | b4debae | 2009-12-22 17:47:17 +0000 | [diff] [blame] | 2015 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 2016 | if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2017 | Actions.ActOnCXXExitDeclInitializer(getCurScope(), ThisDecl); |
Douglas Gregor | b4debae | 2009-12-22 17:47:17 +0000 | [diff] [blame] | 2018 | ExitScope(); |
| 2019 | } |
| 2020 | |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 2021 | ExprResult Initializer = Actions.ActOnParenListExpr(T.getOpenLocation(), |
| 2022 | T.getCloseLocation(), |
Benjamin Kramer | 3fe198b | 2012-08-23 21:35:17 +0000 | [diff] [blame] | 2023 | Exprs); |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2024 | Actions.AddInitializerToDecl(ThisDecl, Initializer.get(), |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 2025 | /*DirectInit=*/true, TypeContainsAuto); |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 2026 | } |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 2027 | } else if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace) && |
Fariborz Jahanian | b0ed95c | 2012-07-03 23:22:13 +0000 | [diff] [blame] | 2028 | (!CurParsedObjCImpl || !D.isFunctionDeclarator())) { |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2029 | // Parse C++0x braced-init-list. |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 2030 | Diag(Tok, diag::warn_cxx98_compat_generalized_initializer_lists); |
| 2031 | |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2032 | if (D.getCXXScopeSpec().isSet()) { |
| 2033 | EnterScope(0); |
| 2034 | Actions.ActOnCXXEnterDeclInitializer(getCurScope(), ThisDecl); |
| 2035 | } |
| 2036 | |
| 2037 | ExprResult Init(ParseBraceInitializer()); |
| 2038 | |
| 2039 | if (D.getCXXScopeSpec().isSet()) { |
| 2040 | Actions.ActOnCXXExitDeclInitializer(getCurScope(), ThisDecl); |
| 2041 | ExitScope(); |
| 2042 | } |
| 2043 | |
| 2044 | if (Init.isInvalid()) { |
| 2045 | Actions.ActOnInitializerError(ThisDecl); |
| 2046 | } else |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2047 | Actions.AddInitializerToDecl(ThisDecl, Init.get(), |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2048 | /*DirectInit=*/true, TypeContainsAuto); |
| 2049 | |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 2050 | } else { |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 2051 | Actions.ActOnUninitializedDecl(ThisDecl, TypeContainsAuto); |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 2052 | } |
| 2053 | |
Richard Smith | 483b9f3 | 2011-02-21 20:05:19 +0000 | [diff] [blame] | 2054 | Actions.FinalizeDeclaration(ThisDecl); |
| 2055 | |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 2056 | return ThisDecl; |
| 2057 | } |
| 2058 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2059 | /// ParseSpecifierQualifierList |
| 2060 | /// specifier-qualifier-list: |
| 2061 | /// type-specifier specifier-qualifier-list[opt] |
| 2062 | /// type-qualifier specifier-qualifier-list[opt] |
| 2063 | /// [GNU] attributes specifier-qualifier-list[opt] |
| 2064 | /// |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2065 | void Parser::ParseSpecifierQualifierList(DeclSpec &DS, AccessSpecifier AS, |
| 2066 | DeclSpecContext DSC) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2067 | /// specifier-qualifier-list is a subset of declaration-specifiers. Just |
| 2068 | /// parse declaration-specifiers and complain about extra stuff. |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2069 | /// TODO: diagnose attribute-specifiers and alignment-specifiers. |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2070 | ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2071 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2072 | // Validate declspec for type-name. |
| 2073 | unsigned Specs = DS.getParsedSpecifiers(); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2074 | if (isTypeSpecifier(DSC) && !DS.hasTypeSpecifier()) { |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2075 | Diag(Tok, diag::err_expected_type); |
| 2076 | DS.SetTypeSpecError(); |
| 2077 | } else if (Specs == DeclSpec::PQ_None && !DS.getNumProtocolQualifiers() && |
| 2078 | !DS.hasAttributes()) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2079 | Diag(Tok, diag::err_typename_requires_specqual); |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2080 | if (!DS.hasTypeSpecifier()) |
| 2081 | DS.SetTypeSpecError(); |
| 2082 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2083 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2084 | // Issue diagnostic and remove storage class if present. |
| 2085 | if (Specs & DeclSpec::PQ_StorageClassSpecifier) { |
| 2086 | if (DS.getStorageClassSpecLoc().isValid()) |
| 2087 | Diag(DS.getStorageClassSpecLoc(),diag::err_typename_invalid_storageclass); |
| 2088 | else |
Richard Smith | ec64244 | 2013-04-12 22:46:28 +0000 | [diff] [blame] | 2089 | Diag(DS.getThreadStorageClassSpecLoc(), |
| 2090 | diag::err_typename_invalid_storageclass); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2091 | DS.ClearStorageClassSpecs(); |
| 2092 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2093 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2094 | // Issue diagnostic and remove function specfier if present. |
| 2095 | if (Specs & DeclSpec::PQ_FunctionSpecifier) { |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 2096 | if (DS.isInlineSpecified()) |
| 2097 | Diag(DS.getInlineSpecLoc(), diag::err_typename_invalid_functionspec); |
| 2098 | if (DS.isVirtualSpecified()) |
| 2099 | Diag(DS.getVirtualSpecLoc(), diag::err_typename_invalid_functionspec); |
| 2100 | if (DS.isExplicitSpecified()) |
| 2101 | Diag(DS.getExplicitSpecLoc(), diag::err_typename_invalid_functionspec); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2102 | DS.ClearFunctionSpecs(); |
| 2103 | } |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2104 | |
| 2105 | // Issue diagnostic and remove constexpr specfier if present. |
| 2106 | if (DS.isConstexprSpecified()) { |
| 2107 | Diag(DS.getConstexprSpecLoc(), diag::err_typename_invalid_constexpr); |
| 2108 | DS.ClearConstexprSpec(); |
| 2109 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2110 | } |
| 2111 | |
Chris Lattner | c199ab3 | 2009-04-12 20:42:31 +0000 | [diff] [blame] | 2112 | /// isValidAfterIdentifierInDeclaratorAfterDeclSpec - Return true if the |
| 2113 | /// specified token is valid after the identifier in a declarator which |
| 2114 | /// immediately follows the declspec. For example, these things are valid: |
| 2115 | /// |
| 2116 | /// int x [ 4]; // direct-declarator |
| 2117 | /// int x ( int y); // direct-declarator |
| 2118 | /// int(int x ) // direct-declarator |
| 2119 | /// int x ; // simple-declaration |
| 2120 | /// int x = 17; // init-declarator-list |
| 2121 | /// int x , y; // init-declarator-list |
| 2122 | /// int x __asm__ ("foo"); // init-declarator-list |
Chris Lattner | b6645dd | 2009-04-14 21:16:09 +0000 | [diff] [blame] | 2123 | /// int x : 4; // struct-declarator |
Chris Lattner | c83c27a | 2009-04-12 22:29:43 +0000 | [diff] [blame] | 2124 | /// int x { 5}; // C++'0x unified initializers |
Chris Lattner | c199ab3 | 2009-04-12 20:42:31 +0000 | [diff] [blame] | 2125 | /// |
| 2126 | /// This is not, because 'x' does not immediately follow the declspec (though |
| 2127 | /// ')' happens to be valid anyway). |
| 2128 | /// int (x) |
| 2129 | /// |
| 2130 | static bool isValidAfterIdentifierInDeclarator(const Token &T) { |
| 2131 | return T.is(tok::l_square) || T.is(tok::l_paren) || T.is(tok::r_paren) || |
| 2132 | T.is(tok::semi) || T.is(tok::comma) || T.is(tok::equal) || |
Chris Lattner | b6645dd | 2009-04-14 21:16:09 +0000 | [diff] [blame] | 2133 | T.is(tok::kw_asm) || T.is(tok::l_brace) || T.is(tok::colon); |
Chris Lattner | c199ab3 | 2009-04-12 20:42:31 +0000 | [diff] [blame] | 2134 | } |
| 2135 | |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2136 | |
| 2137 | /// ParseImplicitInt - This method is called when we have an non-typename |
| 2138 | /// identifier in a declspec (which normally terminates the decl spec) when |
| 2139 | /// the declspec has no type specifier. In this case, the declspec is either |
| 2140 | /// malformed or is "implicit int" (in K&R and C89). |
| 2141 | /// |
| 2142 | /// This method handles diagnosing this prettily and returns false if the |
| 2143 | /// declspec is done being processed. If it recovers and thinks there may be |
| 2144 | /// other pieces of declspec after it, it returns true. |
| 2145 | /// |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2146 | bool Parser::ParseImplicitInt(DeclSpec &DS, CXXScopeSpec *SS, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 2147 | const ParsedTemplateInfo &TemplateInfo, |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2148 | AccessSpecifier AS, DeclSpecContext DSC, |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 2149 | ParsedAttributesWithRange &Attrs) { |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2150 | assert(Tok.is(tok::identifier) && "should have identifier"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2151 | |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2152 | SourceLocation Loc = Tok.getLocation(); |
| 2153 | // If we see an identifier that is not a type name, we normally would |
| 2154 | // parse it as the identifer being declared. However, when a typename |
| 2155 | // is typo'd or the definition is not included, this will incorrectly |
| 2156 | // parse the typename as the identifier name and fall over misparsing |
| 2157 | // later parts of the diagnostic. |
| 2158 | // |
| 2159 | // As such, we try to do some look-ahead in cases where this would |
| 2160 | // otherwise be an "implicit-int" case to see if this is invalid. For |
| 2161 | // example: "static foo_t x = 4;" In this case, if we parsed foo_t as |
| 2162 | // an identifier with implicit int, we'd get a parse error because the |
| 2163 | // next token is obviously invalid for a type. Parse these as a case |
| 2164 | // with an invalid type specifier. |
| 2165 | assert(!DS.hasTypeSpecifier() && "Type specifier checked above"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2166 | |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2167 | // Since we know that this either implicit int (which is rare) or an |
Richard Smith | 827adaf | 2012-05-15 21:01:51 +0000 | [diff] [blame] | 2168 | // error, do lookahead to try to do better recovery. This never applies |
| 2169 | // within a type specifier. Outside of C++, we allow this even if the |
| 2170 | // language doesn't "officially" support implicit int -- we support |
Richard Smith | 58eb370 | 2013-04-30 22:43:51 +0000 | [diff] [blame] | 2171 | // implicit int as an extension in C99 and C11. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2172 | if (!isTypeSpecifier(DSC) && !getLangOpts().CPlusPlus && |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2173 | isValidAfterIdentifierInDeclarator(NextToken())) { |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2174 | // If this token is valid for implicit int, e.g. "static x = 4", then |
| 2175 | // we just avoid eating the identifier, so it will be parsed as the |
| 2176 | // identifier in the declarator. |
| 2177 | return false; |
| 2178 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2179 | |
Richard Smith | 827adaf | 2012-05-15 21:01:51 +0000 | [diff] [blame] | 2180 | if (getLangOpts().CPlusPlus && |
| 2181 | DS.getStorageClassSpec() == DeclSpec::SCS_auto) { |
| 2182 | // Don't require a type specifier if we have the 'auto' storage class |
| 2183 | // specifier in C++98 -- we'll promote it to a type specifier. |
Richard Smith | b79b17b | 2013-10-15 00:00:26 +0000 | [diff] [blame] | 2184 | if (SS) |
| 2185 | AnnotateScopeToken(*SS, /*IsNewAnnotation*/false); |
Richard Smith | 827adaf | 2012-05-15 21:01:51 +0000 | [diff] [blame] | 2186 | return false; |
| 2187 | } |
| 2188 | |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2189 | // Otherwise, if we don't consume this token, we are going to emit an |
| 2190 | // error anyway. Try to recover from various common problems. Check |
| 2191 | // to see if this was a reference to a tag name without a tag specified. |
| 2192 | // This is a common problem in C (saying 'foo' instead of 'struct foo'). |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2193 | // |
| 2194 | // C++ doesn't need this, and isTagName doesn't take SS. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2195 | if (SS == nullptr) { |
| 2196 | const char *TagName = nullptr, *FixitTagName = nullptr; |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2197 | tok::TokenKind TagKind = tok::unknown; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2198 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2199 | switch (Actions.isTagName(*Tok.getIdentifierInfo(), getCurScope())) { |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2200 | default: break; |
Argyrios Kyrtzidis | b8a9d3b | 2011-04-21 17:29:47 +0000 | [diff] [blame] | 2201 | case DeclSpec::TST_enum: |
| 2202 | TagName="enum" ; FixitTagName = "enum " ; TagKind=tok::kw_enum ;break; |
| 2203 | case DeclSpec::TST_union: |
| 2204 | TagName="union" ; FixitTagName = "union " ;TagKind=tok::kw_union ;break; |
| 2205 | case DeclSpec::TST_struct: |
| 2206 | TagName="struct"; FixitTagName = "struct ";TagKind=tok::kw_struct;break; |
Joao Matos | 6666ed4 | 2012-08-31 18:45:21 +0000 | [diff] [blame] | 2207 | case DeclSpec::TST_interface: |
| 2208 | TagName="__interface"; FixitTagName = "__interface "; |
| 2209 | TagKind=tok::kw___interface;break; |
Argyrios Kyrtzidis | b8a9d3b | 2011-04-21 17:29:47 +0000 | [diff] [blame] | 2210 | case DeclSpec::TST_class: |
| 2211 | TagName="class" ; FixitTagName = "class " ;TagKind=tok::kw_class ;break; |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2212 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2213 | |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2214 | if (TagName) { |
Kaelyn Uhrain | aec2ac6 | 2012-04-26 23:36:17 +0000 | [diff] [blame] | 2215 | IdentifierInfo *TokenName = Tok.getIdentifierInfo(); |
| 2216 | LookupResult R(Actions, TokenName, SourceLocation(), |
| 2217 | Sema::LookupOrdinaryName); |
| 2218 | |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2219 | Diag(Loc, diag::err_use_of_tag_name_without_tag) |
Kaelyn Uhrain | aec2ac6 | 2012-04-26 23:36:17 +0000 | [diff] [blame] | 2220 | << TokenName << TagName << getLangOpts().CPlusPlus |
| 2221 | << FixItHint::CreateInsertion(Tok.getLocation(), FixitTagName); |
| 2222 | |
| 2223 | if (Actions.LookupParsedName(R, getCurScope(), SS)) { |
| 2224 | for (LookupResult::iterator I = R.begin(), IEnd = R.end(); |
| 2225 | I != IEnd; ++I) |
Kaelyn Uhrain | 392b3f5 | 2012-04-27 18:26:49 +0000 | [diff] [blame] | 2226 | Diag((*I)->getLocation(), diag::note_decl_hiding_tag_type) |
Kaelyn Uhrain | aec2ac6 | 2012-04-26 23:36:17 +0000 | [diff] [blame] | 2227 | << TokenName << TagName; |
| 2228 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2229 | |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2230 | // Parse this as a tag as if the missing tag were present. |
| 2231 | if (TagKind == tok::kw_enum) |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2232 | ParseEnumSpecifier(Loc, DS, TemplateInfo, AS, DSC_normal); |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2233 | else |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2234 | ParseClassSpecifier(TagKind, Loc, DS, TemplateInfo, AS, |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 2235 | /*EnteringContext*/ false, DSC_normal, Attrs); |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2236 | return true; |
| 2237 | } |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2238 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2239 | |
Richard Smith | 8f0a7e7 | 2012-05-15 21:29:55 +0000 | [diff] [blame] | 2240 | // Determine whether this identifier could plausibly be the name of something |
Richard Smith | 7514db2 | 2012-05-15 21:42:17 +0000 | [diff] [blame] | 2241 | // being declared (with a missing type). |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2242 | if (!isTypeSpecifier(DSC) && |
Richard Smith | 8f0a7e7 | 2012-05-15 21:29:55 +0000 | [diff] [blame] | 2243 | (!SS || DSC == DSC_top_level || DSC == DSC_class)) { |
Richard Smith | 827adaf | 2012-05-15 21:01:51 +0000 | [diff] [blame] | 2244 | // Look ahead to the next token to try to figure out what this declaration |
| 2245 | // was supposed to be. |
| 2246 | switch (NextToken().getKind()) { |
Richard Smith | 827adaf | 2012-05-15 21:01:51 +0000 | [diff] [blame] | 2247 | case tok::l_paren: { |
| 2248 | // static x(4); // 'x' is not a type |
| 2249 | // x(int n); // 'x' is not a type |
| 2250 | // x (*p)[]; // 'x' is a type |
| 2251 | // |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2252 | // Since we're in an error case, we can afford to perform a tentative |
| 2253 | // parse to determine which case we're in. |
Richard Smith | 827adaf | 2012-05-15 21:01:51 +0000 | [diff] [blame] | 2254 | TentativeParsingAction PA(*this); |
| 2255 | ConsumeToken(); |
| 2256 | TPResult TPR = TryParseDeclarator(/*mayBeAbstract*/false); |
| 2257 | PA.Revert(); |
Richard Smith | b79b17b | 2013-10-15 00:00:26 +0000 | [diff] [blame] | 2258 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2259 | if (TPR != TPResult::False) { |
Richard Smith | b79b17b | 2013-10-15 00:00:26 +0000 | [diff] [blame] | 2260 | // The identifier is followed by a parenthesized declarator. |
| 2261 | // It's supposed to be a type. |
| 2262 | break; |
| 2263 | } |
| 2264 | |
| 2265 | // If we're in a context where we could be declaring a constructor, |
| 2266 | // check whether this is a constructor declaration with a bogus name. |
| 2267 | if (DSC == DSC_class || (DSC == DSC_top_level && SS)) { |
| 2268 | IdentifierInfo *II = Tok.getIdentifierInfo(); |
| 2269 | if (Actions.isCurrentClassNameTypo(II, SS)) { |
| 2270 | Diag(Loc, diag::err_constructor_bad_name) |
| 2271 | << Tok.getIdentifierInfo() << II |
| 2272 | << FixItHint::CreateReplacement(Tok.getLocation(), II->getName()); |
| 2273 | Tok.setIdentifierInfo(II); |
| 2274 | } |
| 2275 | } |
| 2276 | // Fall through. |
Richard Smith | 827adaf | 2012-05-15 21:01:51 +0000 | [diff] [blame] | 2277 | } |
Richard Smith | b79b17b | 2013-10-15 00:00:26 +0000 | [diff] [blame] | 2278 | case tok::comma: |
| 2279 | case tok::equal: |
| 2280 | case tok::kw_asm: |
| 2281 | case tok::l_brace: |
| 2282 | case tok::l_square: |
| 2283 | case tok::semi: |
| 2284 | // This looks like a variable or function declaration. The type is |
| 2285 | // probably missing. We're done parsing decl-specifiers. |
| 2286 | if (SS) |
| 2287 | AnnotateScopeToken(*SS, /*IsNewAnnotation*/false); |
| 2288 | return false; |
Richard Smith | 827adaf | 2012-05-15 21:01:51 +0000 | [diff] [blame] | 2289 | |
| 2290 | default: |
| 2291 | // This is probably supposed to be a type. This includes cases like: |
| 2292 | // int f(itn); |
| 2293 | // struct S { unsinged : 4; }; |
| 2294 | break; |
| 2295 | } |
| 2296 | } |
| 2297 | |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2298 | // This is almost certainly an invalid type name. Let Sema emit a diagnostic |
| 2299 | // and attempt to recover. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2300 | ParsedType T; |
Kaelyn Uhrain | 50dc12a | 2012-06-15 23:45:58 +0000 | [diff] [blame] | 2301 | IdentifierInfo *II = Tok.getIdentifierInfo(); |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2302 | Actions.DiagnoseUnknownTypeName(II, Loc, getCurScope(), SS, T, |
| 2303 | getLangOpts().CPlusPlus && |
| 2304 | NextToken().is(tok::less)); |
| 2305 | if (T) { |
| 2306 | // The action has suggested that the type T could be used. Set that as |
| 2307 | // the type in the declaration specifiers, consume the would-be type |
| 2308 | // name token, and we're done. |
| 2309 | const char *PrevSpec; |
| 2310 | unsigned DiagID; |
| 2311 | DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, T, |
| 2312 | Actions.getASTContext().getPrintingPolicy()); |
| 2313 | DS.SetRangeEnd(Tok.getLocation()); |
| 2314 | ConsumeToken(); |
| 2315 | // There may be other declaration specifiers after this. |
| 2316 | return true; |
| 2317 | } else if (II != Tok.getIdentifierInfo()) { |
| 2318 | // If no type was suggested, the correction is to a keyword |
| 2319 | Tok.setKind(II->getTokenID()); |
| 2320 | // There may be other declaration specifiers after this. |
| 2321 | return true; |
Douglas Gregor | a786fdb | 2009-10-13 23:27:22 +0000 | [diff] [blame] | 2322 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2323 | |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2324 | // Otherwise, the action had no suggestion for us. Mark this as an error. |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 2325 | DS.SetTypeSpecError(); |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2326 | DS.SetRangeEnd(Tok.getLocation()); |
| 2327 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2328 | |
Chris Lattner | e40c295 | 2009-04-14 21:34:55 +0000 | [diff] [blame] | 2329 | // TODO: Could inject an invalid typedef decl in an enclosing scope to |
| 2330 | // avoid rippling error messages on subsequent uses of the same type, |
| 2331 | // could be useful if #include was forgotten. |
| 2332 | return false; |
| 2333 | } |
| 2334 | |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2335 | /// \brief Determine the declaration specifier context from the declarator |
| 2336 | /// context. |
| 2337 | /// |
| 2338 | /// \param Context the declarator context, which is one of the |
| 2339 | /// Declarator::TheContext enumerator values. |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2340 | Parser::DeclSpecContext |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2341 | Parser::getDeclSpecContextFromDeclaratorContext(unsigned Context) { |
| 2342 | if (Context == Declarator::MemberContext) |
| 2343 | return DSC_class; |
| 2344 | if (Context == Declarator::FileContext) |
| 2345 | return DSC_top_level; |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2346 | if (Context == Declarator::TemplateTypeArgContext) |
| 2347 | return DSC_template_type_arg; |
Richard Smith | 6d96d3a | 2012-03-15 01:02:11 +0000 | [diff] [blame] | 2348 | if (Context == Declarator::TrailingReturnContext) |
| 2349 | return DSC_trailing; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2350 | if (Context == Declarator::AliasDeclContext || |
| 2351 | Context == Declarator::AliasTemplateContext) |
| 2352 | return DSC_alias_declaration; |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2353 | return DSC_normal; |
| 2354 | } |
| 2355 | |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2356 | /// ParseAlignArgument - Parse the argument to an alignment-specifier. |
| 2357 | /// |
| 2358 | /// FIXME: Simply returns an alignof() expression if the argument is a |
| 2359 | /// type. Ideally, the type should be propagated directly into Sema. |
| 2360 | /// |
Benjamin Kramer | ffbe9b9 | 2011-12-23 17:00:35 +0000 | [diff] [blame] | 2361 | /// [C11] type-id |
| 2362 | /// [C11] constant-expression |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2363 | /// [C++0x] type-id ...[opt] |
| 2364 | /// [C++0x] assignment-expression ...[opt] |
| 2365 | ExprResult Parser::ParseAlignArgument(SourceLocation Start, |
| 2366 | SourceLocation &EllipsisLoc) { |
| 2367 | ExprResult ER; |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2368 | if (isTypeIdInParens()) { |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2369 | SourceLocation TypeLoc = Tok.getLocation(); |
| 2370 | ParsedType Ty = ParseTypeName().get(); |
| 2371 | SourceRange TypeRange(Start, Tok.getLocation()); |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2372 | ER = Actions.ActOnUnaryExprOrTypeTraitExpr(TypeLoc, UETT_AlignOf, true, |
| 2373 | Ty.getAsOpaquePtr(), TypeRange); |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2374 | } else |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2375 | ER = ParseConstantExpression(); |
| 2376 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2377 | if (getLangOpts().CPlusPlus11) |
| 2378 | TryConsumeToken(tok::ellipsis, EllipsisLoc); |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2379 | |
| 2380 | return ER; |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2381 | } |
| 2382 | |
| 2383 | /// ParseAlignmentSpecifier - Parse an alignment-specifier, and add the |
| 2384 | /// attribute to Attrs. |
| 2385 | /// |
| 2386 | /// alignment-specifier: |
Benjamin Kramer | ffbe9b9 | 2011-12-23 17:00:35 +0000 | [diff] [blame] | 2387 | /// [C11] '_Alignas' '(' type-id ')' |
| 2388 | /// [C11] '_Alignas' '(' constant-expression ')' |
Richard Smith | 33f04a2 | 2013-01-29 01:48:07 +0000 | [diff] [blame] | 2389 | /// [C++11] 'alignas' '(' type-id ...[opt] ')' |
| 2390 | /// [C++11] 'alignas' '(' assignment-expression ...[opt] ')' |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2391 | void Parser::ParseAlignmentSpecifier(ParsedAttributes &Attrs, |
Richard Smith | f6565a9 | 2013-02-22 08:32:16 +0000 | [diff] [blame] | 2392 | SourceLocation *EndLoc) { |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2393 | assert((Tok.is(tok::kw_alignas) || Tok.is(tok::kw__Alignas)) && |
| 2394 | "Not an alignment-specifier!"); |
| 2395 | |
Richard Smith | 33f04a2 | 2013-01-29 01:48:07 +0000 | [diff] [blame] | 2396 | IdentifierInfo *KWName = Tok.getIdentifierInfo(); |
| 2397 | SourceLocation KWLoc = ConsumeToken(); |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2398 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 2399 | BalancedDelimiterTracker T(*this, tok::l_paren); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2400 | if (T.expectAndConsume()) |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2401 | return; |
| 2402 | |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2403 | SourceLocation EllipsisLoc; |
| 2404 | ExprResult ArgExpr = ParseAlignArgument(T.getOpenLocation(), EllipsisLoc); |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2405 | if (ArgExpr.isInvalid()) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 2406 | T.skipToEnd(); |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2407 | return; |
| 2408 | } |
| 2409 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 2410 | T.consumeClose(); |
Richard Smith | f6565a9 | 2013-02-22 08:32:16 +0000 | [diff] [blame] | 2411 | if (EndLoc) |
| 2412 | *EndLoc = T.getCloseLocation(); |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2413 | |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 2414 | ArgsVector ArgExprs; |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2415 | ArgExprs.push_back(ArgExpr.get()); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2416 | Attrs.addNew(KWName, KWLoc, nullptr, KWLoc, ArgExprs.data(), 1, |
Aaron Ballman | 624421f | 2013-08-31 01:11:41 +0000 | [diff] [blame] | 2417 | AttributeList::AS_Keyword, EllipsisLoc); |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 2418 | } |
| 2419 | |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2420 | /// Determine whether we're looking at something that might be a declarator |
| 2421 | /// in a simple-declaration. If it can't possibly be a declarator, maybe |
| 2422 | /// diagnose a missing semicolon after a prior tag definition in the decl |
| 2423 | /// specifier. |
| 2424 | /// |
| 2425 | /// \return \c true if an error occurred and this can't be any kind of |
| 2426 | /// declaration. |
| 2427 | bool |
| 2428 | Parser::DiagnoseMissingSemiAfterTagDefinition(DeclSpec &DS, AccessSpecifier AS, |
| 2429 | DeclSpecContext DSContext, |
| 2430 | LateParsedAttrList *LateAttrs) { |
| 2431 | assert(DS.hasTagDefinition() && "shouldn't call this"); |
| 2432 | |
| 2433 | bool EnteringContext = (DSContext == DSC_class || DSContext == DSC_top_level); |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2434 | |
| 2435 | if (getLangOpts().CPlusPlus && |
| 2436 | (Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || |
| 2437 | Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id)) && |
| 2438 | TryAnnotateCXXScopeToken(EnteringContext)) { |
| 2439 | SkipMalformedDecl(); |
| 2440 | return true; |
| 2441 | } |
| 2442 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2443 | bool HasScope = Tok.is(tok::annot_cxxscope); |
| 2444 | // Make a copy in case GetLookAheadToken invalidates the result of NextToken. |
| 2445 | Token AfterScope = HasScope ? NextToken() : Tok; |
| 2446 | |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2447 | // Determine whether the following tokens could possibly be a |
| 2448 | // declarator. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2449 | bool MightBeDeclarator = true; |
| 2450 | if (Tok.is(tok::kw_typename) || Tok.is(tok::annot_typename)) { |
| 2451 | // A declarator-id can't start with 'typename'. |
| 2452 | MightBeDeclarator = false; |
| 2453 | } else if (AfterScope.is(tok::annot_template_id)) { |
| 2454 | // If we have a type expressed as a template-id, this cannot be a |
| 2455 | // declarator-id (such a type cannot be redeclared in a simple-declaration). |
| 2456 | TemplateIdAnnotation *Annot = |
| 2457 | static_cast<TemplateIdAnnotation *>(AfterScope.getAnnotationValue()); |
| 2458 | if (Annot->Kind == TNK_Type_template) |
| 2459 | MightBeDeclarator = false; |
| 2460 | } else if (AfterScope.is(tok::identifier)) { |
| 2461 | const Token &Next = HasScope ? GetLookAheadToken(2) : NextToken(); |
| 2462 | |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2463 | // These tokens cannot come after the declarator-id in a |
| 2464 | // simple-declaration, and are likely to come after a type-specifier. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2465 | if (Next.is(tok::star) || Next.is(tok::amp) || Next.is(tok::ampamp) || |
| 2466 | Next.is(tok::identifier) || Next.is(tok::annot_cxxscope) || |
| 2467 | Next.is(tok::coloncolon)) { |
| 2468 | // Missing a semicolon. |
| 2469 | MightBeDeclarator = false; |
| 2470 | } else if (HasScope) { |
| 2471 | // If the declarator-id has a scope specifier, it must redeclare a |
| 2472 | // previously-declared entity. If that's a type (and this is not a |
| 2473 | // typedef), that's an error. |
| 2474 | CXXScopeSpec SS; |
| 2475 | Actions.RestoreNestedNameSpecifierAnnotation( |
| 2476 | Tok.getAnnotationValue(), Tok.getAnnotationRange(), SS); |
| 2477 | IdentifierInfo *Name = AfterScope.getIdentifierInfo(); |
| 2478 | Sema::NameClassification Classification = Actions.ClassifyName( |
| 2479 | getCurScope(), SS, Name, AfterScope.getLocation(), Next, |
| 2480 | /*IsAddressOfOperand*/false); |
| 2481 | switch (Classification.getKind()) { |
| 2482 | case Sema::NC_Error: |
| 2483 | SkipMalformedDecl(); |
| 2484 | return true; |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2485 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2486 | case Sema::NC_Keyword: |
| 2487 | case Sema::NC_NestedNameSpecifier: |
| 2488 | llvm_unreachable("typo correction and nested name specifiers not " |
| 2489 | "possible here"); |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2490 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2491 | case Sema::NC_Type: |
| 2492 | case Sema::NC_TypeTemplate: |
| 2493 | // Not a previously-declared non-type entity. |
| 2494 | MightBeDeclarator = false; |
| 2495 | break; |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2496 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2497 | case Sema::NC_Unknown: |
| 2498 | case Sema::NC_Expression: |
| 2499 | case Sema::NC_VarTemplate: |
| 2500 | case Sema::NC_FunctionTemplate: |
| 2501 | // Might be a redeclaration of a prior entity. |
| 2502 | break; |
| 2503 | } |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2504 | } |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2505 | } |
| 2506 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2507 | if (MightBeDeclarator) |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2508 | return false; |
| 2509 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2510 | const PrintingPolicy &PPol = Actions.getASTContext().getPrintingPolicy(); |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2511 | Diag(PP.getLocForEndOfToken(DS.getRepAsDecl()->getLocEnd()), |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2512 | diag::err_expected_after) |
| 2513 | << DeclSpec::getSpecifierName(DS.getTypeSpecType(), PPol) << tok::semi; |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2514 | |
| 2515 | // Try to recover from the typo, by dropping the tag definition and parsing |
| 2516 | // the problematic tokens as a type. |
| 2517 | // |
| 2518 | // FIXME: Split the DeclSpec into pieces for the standalone |
| 2519 | // declaration and pieces for the following declaration, instead |
| 2520 | // of assuming that all the other pieces attach to new declaration, |
| 2521 | // and call ParsedFreeStandingDeclSpec as appropriate. |
| 2522 | DS.ClearTypeSpecType(); |
| 2523 | ParsedTemplateInfo NotATemplate; |
| 2524 | ParseDeclarationSpecifiers(DS, NotATemplate, AS, DSContext, LateAttrs); |
| 2525 | return false; |
| 2526 | } |
| 2527 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2528 | /// ParseDeclarationSpecifiers |
| 2529 | /// declaration-specifiers: [C99 6.7] |
| 2530 | /// storage-class-specifier declaration-specifiers[opt] |
| 2531 | /// type-specifier declaration-specifiers[opt] |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2532 | /// [C99] function-specifier declaration-specifiers[opt] |
Benjamin Kramer | ffbe9b9 | 2011-12-23 17:00:35 +0000 | [diff] [blame] | 2533 | /// [C11] alignment-specifier declaration-specifiers[opt] |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2534 | /// [GNU] attributes declaration-specifiers[opt] |
Douglas Gregor | 8d267c5 | 2011-09-09 02:06:17 +0000 | [diff] [blame] | 2535 | /// [Clang] '__module_private__' declaration-specifiers[opt] |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2536 | /// |
| 2537 | /// storage-class-specifier: [C99 6.7.1] |
| 2538 | /// 'typedef' |
| 2539 | /// 'extern' |
| 2540 | /// 'static' |
| 2541 | /// 'auto' |
| 2542 | /// 'register' |
Sebastian Redl | 669d5d7 | 2008-11-14 23:42:31 +0000 | [diff] [blame] | 2543 | /// [C++] 'mutable' |
Richard Smith | ec64244 | 2013-04-12 22:46:28 +0000 | [diff] [blame] | 2544 | /// [C++11] 'thread_local' |
| 2545 | /// [C11] '_Thread_local' |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2546 | /// [GNU] '__thread' |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2547 | /// function-specifier: [C99 6.7.4] |
| 2548 | /// [C99] 'inline' |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 2549 | /// [C++] 'virtual' |
| 2550 | /// [C++] 'explicit' |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 2551 | /// [OpenCL] '__kernel' |
Anders Carlsson | f47f7a1 | 2009-05-06 04:46:28 +0000 | [diff] [blame] | 2552 | /// 'friend': [C++ dcl.friend] |
Sebastian Redl | 2ac6723 | 2009-11-05 15:47:02 +0000 | [diff] [blame] | 2553 | /// 'constexpr': [C++0x dcl.constexpr] |
Anders Carlsson | f47f7a1 | 2009-05-06 04:46:28 +0000 | [diff] [blame] | 2554 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2555 | /// |
Douglas Gregor | c4b4e7b | 2008-12-24 02:52:09 +0000 | [diff] [blame] | 2556 | void Parser::ParseDeclarationSpecifiers(DeclSpec &DS, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 2557 | const ParsedTemplateInfo &TemplateInfo, |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 2558 | AccessSpecifier AS, |
DeLesley Hutchins | 2287c5e | 2012-03-02 22:12:59 +0000 | [diff] [blame] | 2559 | DeclSpecContext DSContext, |
| 2560 | LateParsedAttrList *LateAttrs) { |
Douglas Gregor | 312eadb | 2011-04-24 05:37:28 +0000 | [diff] [blame] | 2561 | if (DS.getSourceRange().isInvalid()) { |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 2562 | // Start the range at the current token but make the end of the range |
| 2563 | // invalid. This will make the entire range invalid unless we successfully |
| 2564 | // consume a token. |
Douglas Gregor | 312eadb | 2011-04-24 05:37:28 +0000 | [diff] [blame] | 2565 | DS.SetRangeStart(Tok.getLocation()); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 2566 | DS.SetRangeEnd(SourceLocation()); |
Douglas Gregor | 312eadb | 2011-04-24 05:37:28 +0000 | [diff] [blame] | 2567 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2568 | |
Douglas Gregor | efaa93a | 2011-11-07 17:33:42 +0000 | [diff] [blame] | 2569 | bool EnteringContext = (DSContext == DSC_class || DSContext == DSC_top_level); |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 2570 | bool AttrsLastTime = false; |
| 2571 | ParsedAttributesWithRange attrs(AttrFactory); |
Pirama Arumuga Nainar | 3ea9e33 | 2015-04-08 08:57:32 -0700 | [diff] [blame] | 2572 | // We use Sema's policy to get bool macros right. |
| 2573 | const PrintingPolicy &Policy = Actions.getPrintingPolicy(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2574 | while (1) { |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 2575 | bool isInvalid = false; |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 2576 | bool isStorageClass = false; |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2577 | const char *PrevSpec = nullptr; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 2578 | unsigned DiagID = 0; |
| 2579 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2580 | SourceLocation Loc = Tok.getLocation(); |
Douglas Gregor | 12e083c | 2008-11-07 15:42:26 +0000 | [diff] [blame] | 2581 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2582 | switch (Tok.getKind()) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2583 | default: |
Chris Lattner | bce6135 | 2008-07-26 00:20:22 +0000 | [diff] [blame] | 2584 | DoneWithDeclSpec: |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 2585 | if (!AttrsLastTime) |
| 2586 | ProhibitAttributes(attrs); |
Michael Han | f64231e | 2012-11-06 19:34:54 +0000 | [diff] [blame] | 2587 | else { |
| 2588 | // Reject C++11 attributes that appertain to decl specifiers as |
| 2589 | // we don't support any C++11 attributes that appertain to decl |
| 2590 | // specifiers. This also conforms to what g++ 4.8 is doing. |
| 2591 | ProhibitCXX11Attributes(attrs); |
| 2592 | |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 2593 | DS.takeAttributesFrom(attrs); |
Michael Han | f64231e | 2012-11-06 19:34:54 +0000 | [diff] [blame] | 2594 | } |
Peter Collingbourne | f190768 | 2011-09-29 18:03:57 +0000 | [diff] [blame] | 2595 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2596 | // If this is not a declaration specifier token, we're done reading decl |
| 2597 | // specifiers. First verify that DeclSpec's are consistent. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2598 | DS.Finish(Diags, PP, Policy); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2599 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2600 | |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 2601 | case tok::l_square: |
| 2602 | case tok::kw_alignas: |
Richard Smith | 672edb0 | 2013-02-22 09:15:49 +0000 | [diff] [blame] | 2603 | if (!getLangOpts().CPlusPlus11 || !isCXX11AttributeSpecifier()) |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 2604 | goto DoneWithDeclSpec; |
| 2605 | |
| 2606 | ProhibitAttributes(attrs); |
| 2607 | // FIXME: It would be good to recover by accepting the attributes, |
| 2608 | // but attempting to do that now would cause serious |
| 2609 | // madness in terms of diagnostics. |
| 2610 | attrs.clear(); |
| 2611 | attrs.Range = SourceRange(); |
| 2612 | |
| 2613 | ParseCXX11Attributes(attrs); |
| 2614 | AttrsLastTime = true; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2615 | continue; |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 2616 | |
Douglas Gregor | 2ccccb3 | 2010-08-23 18:23:48 +0000 | [diff] [blame] | 2617 | case tok::code_completion: { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2618 | Sema::ParserCompletionContext CCC = Sema::PCC_Namespace; |
Douglas Gregor | 2ccccb3 | 2010-08-23 18:23:48 +0000 | [diff] [blame] | 2619 | if (DS.hasTypeSpecifier()) { |
| 2620 | bool AllowNonIdentifiers |
| 2621 | = (getCurScope()->getFlags() & (Scope::ControlScope | |
| 2622 | Scope::BlockScope | |
| 2623 | Scope::TemplateParamScope | |
| 2624 | Scope::FunctionPrototypeScope | |
| 2625 | Scope::AtCatchScope)) == 0; |
| 2626 | bool AllowNestedNameSpecifiers |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2627 | = DSContext == DSC_top_level || |
Douglas Gregor | 2ccccb3 | 2010-08-23 18:23:48 +0000 | [diff] [blame] | 2628 | (DSContext == DSC_class && DS.isFriendSpecified()); |
| 2629 | |
Douglas Gregor | c7b6d88 | 2010-09-16 15:14:18 +0000 | [diff] [blame] | 2630 | Actions.CodeCompleteDeclSpec(getCurScope(), DS, |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2631 | AllowNonIdentifiers, |
Douglas Gregor | c7b6d88 | 2010-09-16 15:14:18 +0000 | [diff] [blame] | 2632 | AllowNestedNameSpecifiers); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 2633 | return cutOffParsing(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2634 | } |
| 2635 | |
Douglas Gregor | 68e3c2e | 2011-02-15 20:33:25 +0000 | [diff] [blame] | 2636 | if (getCurScope()->getFnParent() || getCurScope()->getBlockParent()) |
| 2637 | CCC = Sema::PCC_LocalDeclarationSpecifiers; |
| 2638 | else if (TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate) |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2639 | CCC = DSContext == DSC_class? Sema::PCC_MemberTemplate |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2640 | : Sema::PCC_Template; |
Douglas Gregor | 2ccccb3 | 2010-08-23 18:23:48 +0000 | [diff] [blame] | 2641 | else if (DSContext == DSC_class) |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2642 | CCC = Sema::PCC_Class; |
Argyrios Kyrtzidis | 849639d | 2012-02-07 16:50:53 +0000 | [diff] [blame] | 2643 | else if (CurParsedObjCImpl) |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2644 | CCC = Sema::PCC_ObjCImplementation; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2645 | |
Douglas Gregor | 2ccccb3 | 2010-08-23 18:23:48 +0000 | [diff] [blame] | 2646 | Actions.CodeCompleteOrdinaryName(getCurScope(), CCC); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 2647 | return cutOffParsing(); |
Douglas Gregor | 2ccccb3 | 2010-08-23 18:23:48 +0000 | [diff] [blame] | 2648 | } |
| 2649 | |
Chris Lattner | 5e02c47 | 2009-01-05 00:07:25 +0000 | [diff] [blame] | 2650 | case tok::coloncolon: // ::foo::bar |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 2651 | // C++ scope specifier. Annotate and loop, or bail out on error. |
Eli Friedman | 5a42820 | 2013-08-15 23:59:20 +0000 | [diff] [blame] | 2652 | if (TryAnnotateCXXScopeToken(EnteringContext)) { |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 2653 | if (!DS.hasTypeSpecifier()) |
| 2654 | DS.SetTypeSpecError(); |
| 2655 | goto DoneWithDeclSpec; |
| 2656 | } |
John McCall | 2e0a715 | 2010-03-01 18:20:46 +0000 | [diff] [blame] | 2657 | if (Tok.is(tok::coloncolon)) // ::new or ::delete |
| 2658 | goto DoneWithDeclSpec; |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 2659 | continue; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2660 | |
| 2661 | case tok::annot_cxxscope: { |
Richard Smith | f63eee7 | 2012-05-09 18:56:43 +0000 | [diff] [blame] | 2662 | if (DS.hasTypeSpecifier() || DS.isTypeAltiVecVector()) |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2663 | goto DoneWithDeclSpec; |
| 2664 | |
John McCall | aa87d33 | 2009-12-12 11:40:51 +0000 | [diff] [blame] | 2665 | CXXScopeSpec SS; |
Douglas Gregor | c34348a | 2011-02-24 17:54:50 +0000 | [diff] [blame] | 2666 | Actions.RestoreNestedNameSpecifierAnnotation(Tok.getAnnotationValue(), |
| 2667 | Tok.getAnnotationRange(), |
| 2668 | SS); |
John McCall | aa87d33 | 2009-12-12 11:40:51 +0000 | [diff] [blame] | 2669 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2670 | // We are looking for a qualified typename. |
Douglas Gregor | 9135c72 | 2009-03-25 15:40:00 +0000 | [diff] [blame] | 2671 | Token Next = NextToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2672 | if (Next.is(tok::annot_template_id) && |
Douglas Gregor | 9135c72 | 2009-03-25 15:40:00 +0000 | [diff] [blame] | 2673 | static_cast<TemplateIdAnnotation *>(Next.getAnnotationValue()) |
Douglas Gregor | c45c232 | 2009-03-31 00:43:58 +0000 | [diff] [blame] | 2674 | ->Kind == TNK_Type_template) { |
Douglas Gregor | 9135c72 | 2009-03-25 15:40:00 +0000 | [diff] [blame] | 2675 | // We have a qualified template-id, e.g., N::A<int> |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2676 | |
| 2677 | // C++ [class.qual]p2: |
| 2678 | // In a lookup in which the constructor is an acceptable lookup |
| 2679 | // result and the nested-name-specifier nominates a class C: |
| 2680 | // |
| 2681 | // - if the name specified after the |
| 2682 | // nested-name-specifier, when looked up in C, is the |
| 2683 | // injected-class-name of C (Clause 9), or |
| 2684 | // |
| 2685 | // - if the name specified after the nested-name-specifier |
| 2686 | // is the same as the identifier or the |
| 2687 | // simple-template-id's template-name in the last |
| 2688 | // component of the nested-name-specifier, |
| 2689 | // |
| 2690 | // the name is instead considered to name the constructor of |
| 2691 | // class C. |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2692 | // |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2693 | // Thus, if the template-name is actually the constructor |
| 2694 | // name, then the code is ill-formed; this interpretation is |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2695 | // reinforced by the NAD status of core issue 635. |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 2696 | TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Next); |
Dmitri Gribenko | 1b9e8f7 | 2013-02-12 17:27:41 +0000 | [diff] [blame] | 2697 | if ((DSContext == DSC_top_level || DSContext == DSC_class) && |
John McCall | ba9d853 | 2010-04-13 06:39:49 +0000 | [diff] [blame] | 2698 | TemplateId->Name && |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2699 | Actions.isCurrentClassName(*TemplateId->Name, getCurScope(), &SS)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2700 | if (isConstructorDeclarator(/*Unqualified*/false)) { |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2701 | // The user meant this to be an out-of-line constructor |
| 2702 | // definition, but template arguments are not allowed |
| 2703 | // there. Just allow this as a constructor; we'll |
| 2704 | // complain about it later. |
| 2705 | goto DoneWithDeclSpec; |
| 2706 | } |
| 2707 | |
| 2708 | // The user meant this to name a type, but it actually names |
| 2709 | // a constructor with some extraneous template |
| 2710 | // arguments. Complain, then parse it as a type as the user |
| 2711 | // intended. |
| 2712 | Diag(TemplateId->TemplateNameLoc, |
| 2713 | diag::err_out_of_line_template_id_names_constructor) |
| 2714 | << TemplateId->Name; |
| 2715 | } |
| 2716 | |
John McCall | aa87d33 | 2009-12-12 11:40:51 +0000 | [diff] [blame] | 2717 | DS.getTypeSpecScope() = SS; |
| 2718 | ConsumeToken(); // The C++ scope. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2719 | assert(Tok.is(tok::annot_template_id) && |
Douglas Gregor | 9135c72 | 2009-03-25 15:40:00 +0000 | [diff] [blame] | 2720 | "ParseOptionalCXXScopeSpecifier not working"); |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 2721 | AnnotateTemplateIdTokenAsType(); |
Douglas Gregor | 9135c72 | 2009-03-25 15:40:00 +0000 | [diff] [blame] | 2722 | continue; |
| 2723 | } |
| 2724 | |
Douglas Gregor | 9d7b353 | 2009-09-28 07:26:33 +0000 | [diff] [blame] | 2725 | if (Next.is(tok::annot_typename)) { |
John McCall | aa87d33 | 2009-12-12 11:40:51 +0000 | [diff] [blame] | 2726 | DS.getTypeSpecScope() = SS; |
| 2727 | ConsumeToken(); // The C++ scope. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2728 | if (Tok.getAnnotationValue()) { |
| 2729 | ParsedType T = getTypeAnnotation(Tok); |
Nico Weber | 253e80b | 2010-11-22 10:30:56 +0000 | [diff] [blame] | 2730 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename, |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2731 | Tok.getAnnotationEndLoc(), |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2732 | PrevSpec, DiagID, T, Policy); |
Richard Smith | b3cd3c0 | 2012-09-14 18:27:01 +0000 | [diff] [blame] | 2733 | if (isInvalid) |
| 2734 | break; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2735 | } |
Douglas Gregor | 9d7b353 | 2009-09-28 07:26:33 +0000 | [diff] [blame] | 2736 | else |
| 2737 | DS.SetTypeSpecError(); |
| 2738 | DS.SetRangeEnd(Tok.getAnnotationEndLoc()); |
| 2739 | ConsumeToken(); // The typename |
| 2740 | } |
| 2741 | |
Douglas Gregor | 9135c72 | 2009-03-25 15:40:00 +0000 | [diff] [blame] | 2742 | if (Next.isNot(tok::identifier)) |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2743 | goto DoneWithDeclSpec; |
| 2744 | |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2745 | // If we're in a context where the identifier could be a class name, |
| 2746 | // check whether this is a constructor declaration. |
Dmitri Gribenko | 1b9e8f7 | 2013-02-12 17:27:41 +0000 | [diff] [blame] | 2747 | if ((DSContext == DSC_top_level || DSContext == DSC_class) && |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2748 | Actions.isCurrentClassName(*Next.getIdentifierInfo(), getCurScope(), |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2749 | &SS)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2750 | if (isConstructorDeclarator(/*Unqualified*/false)) |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2751 | goto DoneWithDeclSpec; |
| 2752 | |
| 2753 | // As noted in C++ [class.qual]p2 (cited above), when the name |
| 2754 | // of the class is qualified in a context where it could name |
| 2755 | // a constructor, its a constructor name. However, we've |
| 2756 | // looked at the declarator, and the user probably meant this |
| 2757 | // to be a type. Complain that it isn't supposed to be treated |
| 2758 | // as a type, then proceed to parse it as a type. |
| 2759 | Diag(Next.getLocation(), diag::err_out_of_line_type_names_constructor) |
| 2760 | << Next.getIdentifierInfo(); |
| 2761 | } |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2762 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2763 | ParsedType TypeRep = Actions.getTypeName(*Next.getIdentifierInfo(), |
| 2764 | Next.getLocation(), |
Douglas Gregor | 9e87687 | 2011-03-01 18:12:44 +0000 | [diff] [blame] | 2765 | getCurScope(), &SS, |
| 2766 | false, false, ParsedType(), |
Abramo Bagnara | fad03b7 | 2012-01-27 08:46:19 +0000 | [diff] [blame] | 2767 | /*IsCtorOrDtorName=*/false, |
Douglas Gregor | 9e87687 | 2011-03-01 18:12:44 +0000 | [diff] [blame] | 2768 | /*NonTrivialSourceInfo=*/true); |
Douglas Gregor | 55f6b14 | 2009-02-09 18:46:07 +0000 | [diff] [blame] | 2769 | |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2770 | // If the referenced identifier is not a type, then this declspec is |
| 2771 | // erroneous: We already checked about that it has no type specifier, and |
| 2772 | // C++ doesn't have implicit int. Diagnose it as a typo w.r.t. to the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2773 | // typename. |
David Blaikie | 7247c88 | 2013-05-15 07:37:26 +0000 | [diff] [blame] | 2774 | if (!TypeRep) { |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2775 | ConsumeToken(); // Eat the scope spec so the identifier is current. |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 2776 | ParsedAttributesWithRange Attrs(AttrFactory); |
| 2777 | if (ParseImplicitInt(DS, &SS, TemplateInfo, AS, DSContext, Attrs)) { |
| 2778 | if (!Attrs.empty()) { |
| 2779 | AttrsLastTime = true; |
| 2780 | attrs.takeAllFrom(Attrs); |
| 2781 | } |
| 2782 | continue; |
| 2783 | } |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2784 | goto DoneWithDeclSpec; |
Chris Lattner | f4382f5 | 2009-04-14 22:17:06 +0000 | [diff] [blame] | 2785 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2786 | |
John McCall | aa87d33 | 2009-12-12 11:40:51 +0000 | [diff] [blame] | 2787 | DS.getTypeSpecScope() = SS; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2788 | ConsumeToken(); // The C++ scope. |
| 2789 | |
Douglas Gregor | 1a51b4a | 2009-02-09 15:09:02 +0000 | [diff] [blame] | 2790 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2791 | DiagID, TypeRep, Policy); |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2792 | if (isInvalid) |
| 2793 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2794 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 2795 | DS.SetRangeEnd(Tok.getLocation()); |
| 2796 | ConsumeToken(); // The typename. |
| 2797 | |
| 2798 | continue; |
| 2799 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2800 | |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 2801 | case tok::annot_typename: { |
Bill Wendling | f0cc19f | 2013-11-19 22:56:43 +0000 | [diff] [blame] | 2802 | // If we've previously seen a tag definition, we were almost surely |
| 2803 | // missing a semicolon after it. |
| 2804 | if (DS.hasTypeSpecifier() && DS.hasTagDefinition()) |
| 2805 | goto DoneWithDeclSpec; |
| 2806 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2807 | if (Tok.getAnnotationValue()) { |
| 2808 | ParsedType T = getTypeAnnotation(Tok); |
Nico Weber | c43271e | 2010-11-22 12:50:03 +0000 | [diff] [blame] | 2809 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2810 | DiagID, T, Policy); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2811 | } else |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 2812 | DS.SetTypeSpecError(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2813 | |
Chris Lattner | 5c5db55 | 2010-04-05 18:18:31 +0000 | [diff] [blame] | 2814 | if (isInvalid) |
| 2815 | break; |
| 2816 | |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 2817 | DS.SetRangeEnd(Tok.getAnnotationEndLoc()); |
| 2818 | ConsumeToken(); // The typename |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2819 | |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 2820 | // Objective-C supports syntax of the form 'id<proto1,proto2>' where 'id' |
| 2821 | // is a specific typedef and 'itf<proto1,proto2>' where 'itf' is an |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2822 | // Objective-C interface. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 2823 | if (Tok.is(tok::less) && getLangOpts().ObjC1) |
Douglas Gregor | 9bd1d8d | 2010-10-21 23:17:00 +0000 | [diff] [blame] | 2824 | ParseObjCProtocolQualifiers(DS); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2825 | |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 2826 | continue; |
| 2827 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2828 | |
Douglas Gregor | bfad915 | 2011-04-28 15:48:45 +0000 | [diff] [blame] | 2829 | case tok::kw___is_signed: |
| 2830 | // GNU libstdc++ 4.4 uses __is_signed as an identifier, but Clang |
| 2831 | // typically treats it as a trait. If we see __is_signed as it appears |
| 2832 | // in libstdc++, e.g., |
| 2833 | // |
| 2834 | // static const bool __is_signed; |
| 2835 | // |
| 2836 | // then treat __is_signed as an identifier rather than as a keyword. |
| 2837 | if (DS.getTypeSpecType() == TST_bool && |
| 2838 | DS.getTypeQualifiers() == DeclSpec::TQ_const && |
Bill Wendling | 03e463e | 2013-12-16 02:32:55 +0000 | [diff] [blame] | 2839 | DS.getStorageClassSpec() == DeclSpec::SCS_static) |
| 2840 | TryKeywordIdentFallback(true); |
Douglas Gregor | bfad915 | 2011-04-28 15:48:45 +0000 | [diff] [blame] | 2841 | |
| 2842 | // We're done with the declaration-specifiers. |
| 2843 | goto DoneWithDeclSpec; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2844 | |
Chris Lattner | 3bd934a | 2008-07-26 01:18:38 +0000 | [diff] [blame] | 2845 | // typedef-name |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 2846 | case tok::kw___super: |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 2847 | case tok::kw_decltype: |
Chris Lattner | 3bd934a | 2008-07-26 01:18:38 +0000 | [diff] [blame] | 2848 | case tok::identifier: { |
| 2849 | // This identifier can only be a typedef name if we haven't already seen |
| 2850 | // a type-specifier. Without this check we misparse: |
| 2851 | // typedef int X; struct Y { short X; }; as 'short int'. |
| 2852 | if (DS.hasTypeSpecifier()) |
| 2853 | goto DoneWithDeclSpec; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2854 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 2855 | // In C++, check to see if this is a scope specifier like foo::bar::, if |
| 2856 | // so handle it as such. This is important for ctor parsing. |
| 2857 | if (getLangOpts().CPlusPlus) { |
| 2858 | if (TryAnnotateCXXScopeToken(EnteringContext)) { |
| 2859 | DS.SetTypeSpecError(); |
| 2860 | goto DoneWithDeclSpec; |
| 2861 | } |
| 2862 | if (!Tok.is(tok::identifier)) |
| 2863 | continue; |
| 2864 | } |
| 2865 | |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 2866 | // Check for need to substitute AltiVec keyword tokens. |
| 2867 | if (TryAltiVecToken(DS, Loc, PrevSpec, DiagID, isInvalid)) |
| 2868 | break; |
| 2869 | |
Richard Smith | f63eee7 | 2012-05-09 18:56:43 +0000 | [diff] [blame] | 2870 | // [AltiVec] 2.2: [If the 'vector' specifier is used] The syntax does not |
| 2871 | // allow the use of a typedef name as a type specifier. |
| 2872 | if (DS.isTypeAltiVecVector()) |
| 2873 | goto DoneWithDeclSpec; |
| 2874 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2875 | ParsedType TypeRep = |
| 2876 | Actions.getTypeName(*Tok.getIdentifierInfo(), |
| 2877 | Tok.getLocation(), getCurScope()); |
Douglas Gregor | 55f6b14 | 2009-02-09 18:46:07 +0000 | [diff] [blame] | 2878 | |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2879 | // MSVC: If we weren't able to parse a default template argument, and it's |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 2880 | // just a simple identifier, create a DependentNameType. This will allow |
| 2881 | // us to defer the name lookup to template instantiation time, as long we |
| 2882 | // forge a NestedNameSpecifier for the current context. |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 2883 | if (!TypeRep && DSContext == DSC_template_type_arg && |
| 2884 | getLangOpts().MSVCCompat && getCurScope()->isTemplateParamScope()) { |
| 2885 | TypeRep = Actions.ActOnDelayedDefaultTemplateArg( |
| 2886 | *Tok.getIdentifierInfo(), Tok.getLocation()); |
| 2887 | } |
| 2888 | |
Chris Lattner | c199ab3 | 2009-04-12 20:42:31 +0000 | [diff] [blame] | 2889 | // If this is not a typedef name, don't parse it as part of the declspec, |
| 2890 | // it must be an implicit int or an error. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2891 | if (!TypeRep) { |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 2892 | ParsedAttributesWithRange Attrs(AttrFactory); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2893 | if (ParseImplicitInt(DS, nullptr, TemplateInfo, AS, DSContext, Attrs)) { |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 2894 | if (!Attrs.empty()) { |
| 2895 | AttrsLastTime = true; |
| 2896 | attrs.takeAllFrom(Attrs); |
| 2897 | } |
| 2898 | continue; |
| 2899 | } |
Chris Lattner | 3bd934a | 2008-07-26 01:18:38 +0000 | [diff] [blame] | 2900 | goto DoneWithDeclSpec; |
Chris Lattner | c199ab3 | 2009-04-12 20:42:31 +0000 | [diff] [blame] | 2901 | } |
Douglas Gregor | 55f6b14 | 2009-02-09 18:46:07 +0000 | [diff] [blame] | 2902 | |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2903 | // If we're in a context where the identifier could be a class name, |
| 2904 | // check whether this is a constructor declaration. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 2905 | if (getLangOpts().CPlusPlus && DSContext == DSC_class && |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2906 | Actions.isCurrentClassName(*Tok.getIdentifierInfo(), getCurScope()) && |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2907 | isConstructorDeclarator(/*Unqualified*/true)) |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 2908 | goto DoneWithDeclSpec; |
| 2909 | |
Douglas Gregor | 1a51b4a | 2009-02-09 15:09:02 +0000 | [diff] [blame] | 2910 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2911 | DiagID, TypeRep, Policy); |
Chris Lattner | 3bd934a | 2008-07-26 01:18:38 +0000 | [diff] [blame] | 2912 | if (isInvalid) |
| 2913 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2914 | |
Chris Lattner | 3bd934a | 2008-07-26 01:18:38 +0000 | [diff] [blame] | 2915 | DS.SetRangeEnd(Tok.getLocation()); |
| 2916 | ConsumeToken(); // The identifier |
| 2917 | |
| 2918 | // Objective-C supports syntax of the form 'id<proto1,proto2>' where 'id' |
| 2919 | // is a specific typedef and 'itf<proto1,proto2>' where 'itf' is an |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2920 | // Objective-C interface. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 2921 | if (Tok.is(tok::less) && getLangOpts().ObjC1) |
Douglas Gregor | 9bd1d8d | 2010-10-21 23:17:00 +0000 | [diff] [blame] | 2922 | ParseObjCProtocolQualifiers(DS); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 2923 | |
Steve Naroff | 4f9b9f1 | 2008-09-22 10:28:57 +0000 | [diff] [blame] | 2924 | // Need to support trailing type qualifiers (e.g. "id<p> const"). |
| 2925 | // If a type specifier follows, it will be diagnosed elsewhere. |
| 2926 | continue; |
Chris Lattner | 3bd934a | 2008-07-26 01:18:38 +0000 | [diff] [blame] | 2927 | } |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 2928 | |
| 2929 | // type-name |
| 2930 | case tok::annot_template_id: { |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 2931 | TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); |
Douglas Gregor | c45c232 | 2009-03-31 00:43:58 +0000 | [diff] [blame] | 2932 | if (TemplateId->Kind != TNK_Type_template) { |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 2933 | // This template-id does not refer to a type name, so we're |
| 2934 | // done with the type-specifiers. |
| 2935 | goto DoneWithDeclSpec; |
| 2936 | } |
| 2937 | |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2938 | // If we're in a context where the template-id could be a |
| 2939 | // constructor name or specialization, check whether this is a |
| 2940 | // constructor declaration. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 2941 | if (getLangOpts().CPlusPlus && DSContext == DSC_class && |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2942 | Actions.isCurrentClassName(*TemplateId->Name, getCurScope()) && |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2943 | isConstructorDeclarator(TemplateId->SS.isEmpty())) |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 2944 | goto DoneWithDeclSpec; |
| 2945 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 2946 | // Turn the template-id annotation token into a type annotation |
| 2947 | // token, then try again to parse it as a type-specifier. |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 2948 | AnnotateTemplateIdTokenAsType(); |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 2949 | continue; |
| 2950 | } |
| 2951 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2952 | // GNU attributes support. |
| 2953 | case tok::kw___attribute: |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2954 | ParseGNUAttributes(DS.getAttributes(), nullptr, LateAttrs); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2955 | continue; |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 2956 | |
| 2957 | // Microsoft declspec support. |
| 2958 | case tok::kw___declspec: |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2959 | ParseMicrosoftDeclSpec(DS.getAttributes()); |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 2960 | continue; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2961 | |
Steve Naroff | 239f073 | 2008-12-25 14:16:32 +0000 | [diff] [blame] | 2962 | // Microsoft single token adornments. |
Michael J. Spencer | adc6cbf | 2012-06-18 07:00:48 +0000 | [diff] [blame] | 2963 | case tok::kw___forceinline: { |
Serge Pavlov | d1fa81c | 2013-11-13 06:57:53 +0000 | [diff] [blame] | 2964 | isInvalid = DS.setFunctionSpecForceInline(Loc, PrevSpec, DiagID); |
Michael J. Spencer | adc6cbf | 2012-06-18 07:00:48 +0000 | [diff] [blame] | 2965 | IdentifierInfo *AttrName = Tok.getIdentifierInfo(); |
Richard Smith | b3cd3c0 | 2012-09-14 18:27:01 +0000 | [diff] [blame] | 2966 | SourceLocation AttrNameLoc = Tok.getLocation(); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 2967 | DS.getAttributes().addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, |
| 2968 | nullptr, 0, AttributeList::AS_Keyword); |
Richard Smith | b3cd3c0 | 2012-09-14 18:27:01 +0000 | [diff] [blame] | 2969 | break; |
Michael J. Spencer | adc6cbf | 2012-06-18 07:00:48 +0000 | [diff] [blame] | 2970 | } |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 2971 | |
Aaron Ballman | aa9df09 | 2013-05-22 23:25:32 +0000 | [diff] [blame] | 2972 | case tok::kw___sptr: |
| 2973 | case tok::kw___uptr: |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 2974 | case tok::kw___ptr64: |
Francois Pichet | 58fd97a | 2011-08-25 00:36:46 +0000 | [diff] [blame] | 2975 | case tok::kw___ptr32: |
Steve Naroff | 86bc6cf | 2008-12-25 14:41:26 +0000 | [diff] [blame] | 2976 | case tok::kw___w64: |
Steve Naroff | 239f073 | 2008-12-25 14:16:32 +0000 | [diff] [blame] | 2977 | case tok::kw___cdecl: |
| 2978 | case tok::kw___stdcall: |
| 2979 | case tok::kw___fastcall: |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 2980 | case tok::kw___thiscall: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 2981 | case tok::kw___vectorcall: |
Francois Pichet | 3bd9aa4 | 2011-08-18 09:59:55 +0000 | [diff] [blame] | 2982 | case tok::kw___unaligned: |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2983 | ParseMicrosoftTypeAttributes(DS.getAttributes()); |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 2984 | continue; |
| 2985 | |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 2986 | // Borland single token adornments. |
| 2987 | case tok::kw___pascal: |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2988 | ParseBorlandTypeAttributes(DS.getAttributes()); |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 2989 | continue; |
| 2990 | |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 2991 | // OpenCL single token adornments. |
| 2992 | case tok::kw___kernel: |
| 2993 | ParseOpenCLAttributes(DS.getAttributes()); |
| 2994 | continue; |
| 2995 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2996 | // storage-class-specifier |
| 2997 | case tok::kw_typedef: |
Peter Collingbourne | b8b0e75 | 2011-10-06 03:01:00 +0000 | [diff] [blame] | 2998 | isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_typedef, Loc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 2999 | PrevSpec, DiagID, Policy); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3000 | isStorageClass = true; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3001 | break; |
| 3002 | case tok::kw_extern: |
Richard Smith | ec64244 | 2013-04-12 22:46:28 +0000 | [diff] [blame] | 3003 | if (DS.getThreadStorageClassSpec() == DeclSpec::TSCS___thread) |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 3004 | Diag(Tok, diag::ext_thread_before) << "extern"; |
Peter Collingbourne | b8b0e75 | 2011-10-06 03:01:00 +0000 | [diff] [blame] | 3005 | isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_extern, Loc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3006 | PrevSpec, DiagID, Policy); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3007 | isStorageClass = true; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3008 | break; |
Steve Naroff | 8d54bf2 | 2007-12-18 00:16:02 +0000 | [diff] [blame] | 3009 | case tok::kw___private_extern__: |
Peter Collingbourne | b8b0e75 | 2011-10-06 03:01:00 +0000 | [diff] [blame] | 3010 | isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_private_extern, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3011 | Loc, PrevSpec, DiagID, Policy); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3012 | isStorageClass = true; |
Steve Naroff | 8d54bf2 | 2007-12-18 00:16:02 +0000 | [diff] [blame] | 3013 | break; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3014 | case tok::kw_static: |
Richard Smith | ec64244 | 2013-04-12 22:46:28 +0000 | [diff] [blame] | 3015 | if (DS.getThreadStorageClassSpec() == DeclSpec::TSCS___thread) |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 3016 | Diag(Tok, diag::ext_thread_before) << "static"; |
Peter Collingbourne | b8b0e75 | 2011-10-06 03:01:00 +0000 | [diff] [blame] | 3017 | isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_static, Loc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3018 | PrevSpec, DiagID, Policy); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3019 | isStorageClass = true; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3020 | break; |
| 3021 | case tok::kw_auto: |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 3022 | if (getLangOpts().CPlusPlus11) { |
Fariborz Jahanian | 12e3ece | 2011-02-22 23:17:49 +0000 | [diff] [blame] | 3023 | if (isKnownToBeTypeSpecifier(GetLookAheadToken(1))) { |
Peter Collingbourne | b8b0e75 | 2011-10-06 03:01:00 +0000 | [diff] [blame] | 3024 | isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_auto, Loc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3025 | PrevSpec, DiagID, Policy); |
Fariborz Jahanian | 12e3ece | 2011-02-22 23:17:49 +0000 | [diff] [blame] | 3026 | if (!isInvalid) |
Richard Smith | 8f4fb19 | 2011-09-04 19:54:14 +0000 | [diff] [blame] | 3027 | Diag(Tok, diag::ext_auto_storage_class) |
Fariborz Jahanian | 12e3ece | 2011-02-22 23:17:49 +0000 | [diff] [blame] | 3028 | << FixItHint::CreateRemoval(DS.getStorageClassSpecLoc()); |
Richard Smith | 8f4fb19 | 2011-09-04 19:54:14 +0000 | [diff] [blame] | 3029 | } else |
Fariborz Jahanian | 12e3ece | 2011-02-22 23:17:49 +0000 | [diff] [blame] | 3030 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_auto, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3031 | DiagID, Policy); |
Richard Smith | 8f4fb19 | 2011-09-04 19:54:14 +0000 | [diff] [blame] | 3032 | } else |
Peter Collingbourne | b8b0e75 | 2011-10-06 03:01:00 +0000 | [diff] [blame] | 3033 | isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_auto, Loc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3034 | PrevSpec, DiagID, Policy); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3035 | isStorageClass = true; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3036 | break; |
| 3037 | case tok::kw_register: |
Peter Collingbourne | b8b0e75 | 2011-10-06 03:01:00 +0000 | [diff] [blame] | 3038 | isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_register, Loc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3039 | PrevSpec, DiagID, Policy); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3040 | isStorageClass = true; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3041 | break; |
Sebastian Redl | 669d5d7 | 2008-11-14 23:42:31 +0000 | [diff] [blame] | 3042 | case tok::kw_mutable: |
Peter Collingbourne | b8b0e75 | 2011-10-06 03:01:00 +0000 | [diff] [blame] | 3043 | isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_mutable, Loc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3044 | PrevSpec, DiagID, Policy); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3045 | isStorageClass = true; |
Sebastian Redl | 669d5d7 | 2008-11-14 23:42:31 +0000 | [diff] [blame] | 3046 | break; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3047 | case tok::kw___thread: |
Richard Smith | ec64244 | 2013-04-12 22:46:28 +0000 | [diff] [blame] | 3048 | isInvalid = DS.SetStorageClassSpecThread(DeclSpec::TSCS___thread, Loc, |
| 3049 | PrevSpec, DiagID); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3050 | isStorageClass = true; |
Richard Smith | ec64244 | 2013-04-12 22:46:28 +0000 | [diff] [blame] | 3051 | break; |
| 3052 | case tok::kw_thread_local: |
| 3053 | isInvalid = DS.SetStorageClassSpecThread(DeclSpec::TSCS_thread_local, Loc, |
| 3054 | PrevSpec, DiagID); |
| 3055 | break; |
| 3056 | case tok::kw__Thread_local: |
| 3057 | isInvalid = DS.SetStorageClassSpecThread(DeclSpec::TSCS__Thread_local, |
| 3058 | Loc, PrevSpec, DiagID); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3059 | isStorageClass = true; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3060 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3061 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3062 | // function-specifier |
| 3063 | case tok::kw_inline: |
Serge Pavlov | d1fa81c | 2013-11-13 06:57:53 +0000 | [diff] [blame] | 3064 | isInvalid = DS.setFunctionSpecInline(Loc, PrevSpec, DiagID); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3065 | break; |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 3066 | case tok::kw_virtual: |
Serge Pavlov | d1fa81c | 2013-11-13 06:57:53 +0000 | [diff] [blame] | 3067 | isInvalid = DS.setFunctionSpecVirtual(Loc, PrevSpec, DiagID); |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 3068 | break; |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 3069 | case tok::kw_explicit: |
Serge Pavlov | d1fa81c | 2013-11-13 06:57:53 +0000 | [diff] [blame] | 3070 | isInvalid = DS.setFunctionSpecExplicit(Loc, PrevSpec, DiagID); |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 3071 | break; |
Richard Smith | de03c15 | 2013-01-17 22:16:11 +0000 | [diff] [blame] | 3072 | case tok::kw__Noreturn: |
| 3073 | if (!getLangOpts().C11) |
| 3074 | Diag(Loc, diag::ext_c11_noreturn); |
Serge Pavlov | d1fa81c | 2013-11-13 06:57:53 +0000 | [diff] [blame] | 3075 | isInvalid = DS.setFunctionSpecNoreturn(Loc, PrevSpec, DiagID); |
Richard Smith | de03c15 | 2013-01-17 22:16:11 +0000 | [diff] [blame] | 3076 | break; |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3077 | |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 3078 | // alignment-specifier |
| 3079 | case tok::kw__Alignas: |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3080 | if (!getLangOpts().C11) |
Jordan Rose | f70a886 | 2012-06-30 21:33:57 +0000 | [diff] [blame] | 3081 | Diag(Tok, diag::ext_c11_alignment) << Tok.getName(); |
Peter Collingbourne | 82d0b0a | 2011-09-29 18:04:28 +0000 | [diff] [blame] | 3082 | ParseAlignmentSpecifier(DS.getAttributes()); |
| 3083 | continue; |
| 3084 | |
Anders Carlsson | f47f7a1 | 2009-05-06 04:46:28 +0000 | [diff] [blame] | 3085 | // friend |
| 3086 | case tok::kw_friend: |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 3087 | if (DSContext == DSC_class) |
| 3088 | isInvalid = DS.SetFriendSpec(Loc, PrevSpec, DiagID); |
| 3089 | else { |
| 3090 | PrevSpec = ""; // not actually used by the diagnostic |
| 3091 | DiagID = diag::err_friend_invalid_in_context; |
| 3092 | isInvalid = true; |
| 3093 | } |
Anders Carlsson | f47f7a1 | 2009-05-06 04:46:28 +0000 | [diff] [blame] | 3094 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3095 | |
Douglas Gregor | 8d267c5 | 2011-09-09 02:06:17 +0000 | [diff] [blame] | 3096 | // Modules |
| 3097 | case tok::kw___module_private__: |
| 3098 | isInvalid = DS.setModulePrivateSpec(Loc, PrevSpec, DiagID); |
| 3099 | break; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3100 | |
Sebastian Redl | 2ac6723 | 2009-11-05 15:47:02 +0000 | [diff] [blame] | 3101 | // constexpr |
| 3102 | case tok::kw_constexpr: |
| 3103 | isInvalid = DS.SetConstexprSpec(Loc, PrevSpec, DiagID); |
| 3104 | break; |
| 3105 | |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3106 | // type-specifier |
| 3107 | case tok::kw_short: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3108 | isInvalid = DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3109 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3110 | break; |
| 3111 | case tok::kw_long: |
| 3112 | if (DS.getTypeSpecWidth() != DeclSpec::TSW_long) |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3113 | isInvalid = DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3114 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3115 | else |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3116 | isInvalid = DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3117 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3118 | break; |
Francois Pichet | 338d7f7 | 2011-04-28 01:59:37 +0000 | [diff] [blame] | 3119 | case tok::kw___int64: |
| 3120 | isInvalid = DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3121 | DiagID, Policy); |
Francois Pichet | 338d7f7 | 2011-04-28 01:59:37 +0000 | [diff] [blame] | 3122 | break; |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3123 | case tok::kw_signed: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3124 | isInvalid = DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec, |
| 3125 | DiagID); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3126 | break; |
| 3127 | case tok::kw_unsigned: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3128 | isInvalid = DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec, |
| 3129 | DiagID); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3130 | break; |
| 3131 | case tok::kw__Complex: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3132 | isInvalid = DS.SetTypeSpecComplex(DeclSpec::TSC_complex, Loc, PrevSpec, |
| 3133 | DiagID); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3134 | break; |
| 3135 | case tok::kw__Imaginary: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3136 | isInvalid = DS.SetTypeSpecComplex(DeclSpec::TSC_imaginary, Loc, PrevSpec, |
| 3137 | DiagID); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3138 | break; |
| 3139 | case tok::kw_void: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3140 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3141 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3142 | break; |
| 3143 | case tok::kw_char: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3144 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3145 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3146 | break; |
| 3147 | case tok::kw_int: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3148 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3149 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3150 | break; |
Richard Smith | 5a5a971 | 2012-04-04 06:24:32 +0000 | [diff] [blame] | 3151 | case tok::kw___int128: |
| 3152 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_int128, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3153 | DiagID, Policy); |
Richard Smith | 5a5a971 | 2012-04-04 06:24:32 +0000 | [diff] [blame] | 3154 | break; |
| 3155 | case tok::kw_half: |
| 3156 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_half, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3157 | DiagID, Policy); |
Richard Smith | 5a5a971 | 2012-04-04 06:24:32 +0000 | [diff] [blame] | 3158 | break; |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3159 | case tok::kw_float: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3160 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3161 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3162 | break; |
| 3163 | case tok::kw_double: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3164 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3165 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3166 | break; |
| 3167 | case tok::kw_wchar_t: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3168 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3169 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3170 | break; |
Alisdair Meredith | f5c209d | 2009-07-14 06:30:34 +0000 | [diff] [blame] | 3171 | case tok::kw_char16_t: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3172 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3173 | DiagID, Policy); |
Alisdair Meredith | f5c209d | 2009-07-14 06:30:34 +0000 | [diff] [blame] | 3174 | break; |
| 3175 | case tok::kw_char32_t: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3176 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3177 | DiagID, Policy); |
Alisdair Meredith | f5c209d | 2009-07-14 06:30:34 +0000 | [diff] [blame] | 3178 | break; |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3179 | case tok::kw_bool: |
| 3180 | case tok::kw__Bool: |
Argyrios Kyrtzidis | 4383e18 | 2010-11-16 18:18:13 +0000 | [diff] [blame] | 3181 | if (Tok.is(tok::kw_bool) && |
| 3182 | DS.getTypeSpecType() != DeclSpec::TST_unspecified && |
| 3183 | DS.getStorageClassSpec() == DeclSpec::SCS_typedef) { |
| 3184 | PrevSpec = ""; // Not used by the diagnostic. |
| 3185 | DiagID = diag::err_bool_redeclaration; |
Fariborz Jahanian | e106a0b | 2011-04-19 21:42:37 +0000 | [diff] [blame] | 3186 | // For better error recovery. |
| 3187 | Tok.setKind(tok::identifier); |
Argyrios Kyrtzidis | 4383e18 | 2010-11-16 18:18:13 +0000 | [diff] [blame] | 3188 | isInvalid = true; |
| 3189 | } else { |
| 3190 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3191 | DiagID, Policy); |
Argyrios Kyrtzidis | 4383e18 | 2010-11-16 18:18:13 +0000 | [diff] [blame] | 3192 | } |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3193 | break; |
| 3194 | case tok::kw__Decimal32: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3195 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_decimal32, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3196 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3197 | break; |
| 3198 | case tok::kw__Decimal64: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3199 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_decimal64, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3200 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3201 | break; |
| 3202 | case tok::kw__Decimal128: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3203 | isInvalid = DS.SetTypeSpecType(DeclSpec::TST_decimal128, Loc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3204 | DiagID, Policy); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3205 | break; |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 3206 | case tok::kw___vector: |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3207 | isInvalid = DS.SetTypeAltiVecVector(true, Loc, PrevSpec, DiagID, Policy); |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 3208 | break; |
| 3209 | case tok::kw___pixel: |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3210 | isInvalid = DS.SetTypeAltiVecPixel(true, Loc, PrevSpec, DiagID, Policy); |
Guy Benyei | e6b9d80 | 2013-01-20 12:31:11 +0000 | [diff] [blame] | 3211 | break; |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3212 | case tok::kw___bool: |
| 3213 | isInvalid = DS.SetTypeAltiVecBool(true, Loc, PrevSpec, DiagID, Policy); |
| 3214 | break; |
John McCall | a5fc472 | 2011-04-09 22:50:59 +0000 | [diff] [blame] | 3215 | case tok::kw___unknown_anytype: |
| 3216 | isInvalid = DS.SetTypeSpecType(TST_unknown_anytype, Loc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3217 | PrevSpec, DiagID, Policy); |
John McCall | a5fc472 | 2011-04-09 22:50:59 +0000 | [diff] [blame] | 3218 | break; |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3219 | |
| 3220 | // class-specifier: |
| 3221 | case tok::kw_class: |
| 3222 | case tok::kw_struct: |
Joao Matos | 6666ed4 | 2012-08-31 18:45:21 +0000 | [diff] [blame] | 3223 | case tok::kw___interface: |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 3224 | case tok::kw_union: { |
| 3225 | tok::TokenKind Kind = Tok.getKind(); |
| 3226 | ConsumeToken(); |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 3227 | |
| 3228 | // These are attributes following class specifiers. |
| 3229 | // To produce better diagnostic, we parse them when |
| 3230 | // parsing class specifier. |
Bill Wendling | ad017fa | 2012-12-20 19:22:21 +0000 | [diff] [blame] | 3231 | ParsedAttributesWithRange Attributes(AttrFactory); |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 3232 | ParseClassSpecifier(Kind, Loc, DS, TemplateInfo, AS, |
Bill Wendling | ad017fa | 2012-12-20 19:22:21 +0000 | [diff] [blame] | 3233 | EnteringContext, DSContext, Attributes); |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 3234 | |
| 3235 | // If there are attributes following class specifier, |
| 3236 | // take them over and handle them here. |
Bill Wendling | ad017fa | 2012-12-20 19:22:21 +0000 | [diff] [blame] | 3237 | if (!Attributes.empty()) { |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 3238 | AttrsLastTime = true; |
Bill Wendling | ad017fa | 2012-12-20 19:22:21 +0000 | [diff] [blame] | 3239 | attrs.takeAllFrom(Attributes); |
Michael Han | 2e39713 | 2012-11-26 22:54:45 +0000 | [diff] [blame] | 3240 | } |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3241 | continue; |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 3242 | } |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3243 | |
| 3244 | // enum-specifier: |
| 3245 | case tok::kw_enum: |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 3246 | ConsumeToken(); |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 3247 | ParseEnumSpecifier(Loc, DS, TemplateInfo, AS, DSContext); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3248 | continue; |
| 3249 | |
| 3250 | // cv-qualifier: |
| 3251 | case tok::kw_const: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3252 | isInvalid = DS.SetTypeQual(DeclSpec::TQ_const, Loc, PrevSpec, DiagID, |
Richard Smith | d654f2d | 2012-10-17 23:31:46 +0000 | [diff] [blame] | 3253 | getLangOpts()); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3254 | break; |
| 3255 | case tok::kw_volatile: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3256 | isInvalid = DS.SetTypeQual(DeclSpec::TQ_volatile, Loc, PrevSpec, DiagID, |
Richard Smith | d654f2d | 2012-10-17 23:31:46 +0000 | [diff] [blame] | 3257 | getLangOpts()); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3258 | break; |
| 3259 | case tok::kw_restrict: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3260 | isInvalid = DS.SetTypeQual(DeclSpec::TQ_restrict, Loc, PrevSpec, DiagID, |
Richard Smith | d654f2d | 2012-10-17 23:31:46 +0000 | [diff] [blame] | 3261 | getLangOpts()); |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3262 | break; |
| 3263 | |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 3264 | // C++ typename-specifier: |
| 3265 | case tok::kw_typename: |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 3266 | if (TryAnnotateTypeOrScopeToken()) { |
| 3267 | DS.SetTypeSpecError(); |
| 3268 | goto DoneWithDeclSpec; |
| 3269 | } |
| 3270 | if (!Tok.is(tok::kw_typename)) |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 3271 | continue; |
| 3272 | break; |
| 3273 | |
Chris Lattner | 80d0c89 | 2009-01-21 19:48:37 +0000 | [diff] [blame] | 3274 | // GNU typeof support. |
| 3275 | case tok::kw_typeof: |
| 3276 | ParseTypeofSpecifier(DS); |
| 3277 | continue; |
| 3278 | |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 3279 | case tok::annot_decltype: |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 3280 | ParseDecltypeSpecifier(DS); |
| 3281 | continue; |
| 3282 | |
Sean Hunt | db5d44b | 2011-05-19 05:37:45 +0000 | [diff] [blame] | 3283 | case tok::kw___underlying_type: |
| 3284 | ParseUnderlyingTypeSpecifier(DS); |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 3285 | continue; |
| 3286 | |
| 3287 | case tok::kw__Atomic: |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 3288 | // C11 6.7.2.4/4: |
| 3289 | // If the _Atomic keyword is immediately followed by a left parenthesis, |
| 3290 | // it is interpreted as a type specifier (with a type name), not as a |
| 3291 | // type qualifier. |
| 3292 | if (NextToken().is(tok::l_paren)) { |
| 3293 | ParseAtomicSpecifier(DS); |
| 3294 | continue; |
| 3295 | } |
| 3296 | isInvalid = DS.SetTypeQual(DeclSpec::TQ_atomic, Loc, PrevSpec, DiagID, |
| 3297 | getLangOpts()); |
| 3298 | break; |
Sean Hunt | db5d44b | 2011-05-19 05:37:45 +0000 | [diff] [blame] | 3299 | |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 3300 | // OpenCL qualifiers: |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3301 | case tok::kw___generic: |
| 3302 | // generic address space is introduced only in OpenCL v2.0 |
| 3303 | // see OpenCL C Spec v2.0 s6.5.5 |
| 3304 | if (Actions.getLangOpts().OpenCLVersion < 200) { |
| 3305 | DiagID = diag::err_opencl_unknown_type_specifier; |
| 3306 | PrevSpec = Tok.getIdentifierInfo()->getNameStart(); |
| 3307 | isInvalid = true; |
| 3308 | break; |
| 3309 | }; |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 3310 | case tok::kw___private: |
| 3311 | case tok::kw___global: |
| 3312 | case tok::kw___local: |
| 3313 | case tok::kw___constant: |
| 3314 | case tok::kw___read_only: |
| 3315 | case tok::kw___write_only: |
| 3316 | case tok::kw___read_write: |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3317 | ParseOpenCLQualifiers(DS.getAttributes()); |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 3318 | break; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3319 | |
Steve Naroff | d3ded1f | 2008-06-05 00:02:44 +0000 | [diff] [blame] | 3320 | case tok::less: |
Chris Lattner | 3bd934a | 2008-07-26 01:18:38 +0000 | [diff] [blame] | 3321 | // GCC ObjC supports types like "<SomeProtocol>" as a synonym for |
Chris Lattner | bce6135 | 2008-07-26 00:20:22 +0000 | [diff] [blame] | 3322 | // "id<SomeProtocol>". This is hopelessly old fashioned and dangerous, |
| 3323 | // but we support it. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3324 | if (DS.hasTypeSpecifier() || !getLangOpts().ObjC1) |
Chris Lattner | bce6135 | 2008-07-26 00:20:22 +0000 | [diff] [blame] | 3325 | goto DoneWithDeclSpec; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3326 | |
Douglas Gregor | 46f936e | 2010-11-19 17:10:50 +0000 | [diff] [blame] | 3327 | if (!ParseObjCProtocolQualifiers(DS)) |
| 3328 | Diag(Loc, diag::warn_objc_protocol_qualifier_missing_id) |
| 3329 | << FixItHint::CreateInsertion(Loc, "id") |
| 3330 | << SourceRange(Loc, DS.getSourceRange().getEnd()); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3331 | |
Douglas Gregor | 9bd1d8d | 2010-10-21 23:17:00 +0000 | [diff] [blame] | 3332 | // Need to support trailing type qualifiers (e.g. "id<p> const"). |
| 3333 | // If a type specifier follows, it will be diagnosed elsewhere. |
| 3334 | continue; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3335 | } |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3336 | // If the specifier wasn't legal, issue a diagnostic. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3337 | if (isInvalid) { |
| 3338 | assert(PrevSpec && "Method did not return previous specifier!"); |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3339 | assert(DiagID); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3340 | |
Douglas Gregor | ae2fb14 | 2010-08-23 14:34:43 +0000 | [diff] [blame] | 3341 | if (DiagID == diag::ext_duplicate_declspec) |
| 3342 | Diag(Tok, DiagID) |
| 3343 | << PrevSpec << FixItHint::CreateRemoval(Tok.getLocation()); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3344 | else if (DiagID == diag::err_opencl_unknown_type_specifier) |
| 3345 | Diag(Tok, DiagID) << PrevSpec << isStorageClass; |
Douglas Gregor | ae2fb14 | 2010-08-23 14:34:43 +0000 | [diff] [blame] | 3346 | else |
| 3347 | Diag(Tok, DiagID) << PrevSpec; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3348 | } |
Fariborz Jahanian | 12e3ece | 2011-02-22 23:17:49 +0000 | [diff] [blame] | 3349 | |
Chris Lattner | 81c018d | 2008-03-13 06:29:04 +0000 | [diff] [blame] | 3350 | DS.SetRangeEnd(Tok.getLocation()); |
Fariborz Jahanian | e106a0b | 2011-04-19 21:42:37 +0000 | [diff] [blame] | 3351 | if (DiagID != diag::err_bool_redeclaration) |
| 3352 | ConsumeToken(); |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 3353 | |
| 3354 | AttrsLastTime = false; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3355 | } |
| 3356 | } |
Douglas Gregor | adcac88 | 2008-12-01 23:54:00 +0000 | [diff] [blame] | 3357 | |
Chris Lattner | cd4b83c | 2007-10-29 04:42:53 +0000 | [diff] [blame] | 3358 | /// ParseStructDeclaration - Parse a struct declaration without the terminating |
| 3359 | /// semicolon. |
| 3360 | /// |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3361 | /// struct-declaration: |
Chris Lattner | cd4b83c | 2007-10-29 04:42:53 +0000 | [diff] [blame] | 3362 | /// specifier-qualifier-list struct-declarator-list |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3363 | /// [GNU] __extension__ struct-declaration |
Chris Lattner | cd4b83c | 2007-10-29 04:42:53 +0000 | [diff] [blame] | 3364 | /// [GNU] specifier-qualifier-list |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3365 | /// struct-declarator-list: |
| 3366 | /// struct-declarator |
| 3367 | /// struct-declarator-list ',' struct-declarator |
| 3368 | /// [GNU] struct-declarator-list ',' attributes[opt] struct-declarator |
| 3369 | /// struct-declarator: |
| 3370 | /// declarator |
| 3371 | /// [GNU] declarator attributes[opt] |
| 3372 | /// declarator[opt] ':' constant-expression |
| 3373 | /// [GNU] declarator[opt] ':' constant-expression attributes[opt] |
| 3374 | /// |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 3375 | void Parser::ParseStructDeclaration( |
| 3376 | ParsingDeclSpec &DS, |
| 3377 | llvm::function_ref<void(ParsingFieldDeclarator &)> FieldsCallback) { |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3378 | |
Chris Lattner | c46d1a1 | 2008-10-20 06:45:43 +0000 | [diff] [blame] | 3379 | if (Tok.is(tok::kw___extension__)) { |
| 3380 | // __extension__ silences extension warnings in the subexpression. |
| 3381 | ExtensionRAIIObject O(Diags); // Use RAII to do this. |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3382 | ConsumeToken(); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 3383 | return ParseStructDeclaration(DS, FieldsCallback); |
Chris Lattner | c46d1a1 | 2008-10-20 06:45:43 +0000 | [diff] [blame] | 3384 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3385 | |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3386 | // Parse the common specifier-qualifiers-list piece. |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3387 | ParseSpecifierQualifierList(DS); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3388 | |
Douglas Gregor | 4920f1f | 2009-01-12 22:49:06 +0000 | [diff] [blame] | 3389 | // If there are no declarators, this is a free-standing declaration |
| 3390 | // specifier. Let the actions module cope with it. |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 3391 | if (Tok.is(tok::semi)) { |
Eli Friedman | f66a0dd | 2012-08-08 23:04:35 +0000 | [diff] [blame] | 3392 | Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS_none, |
| 3393 | DS); |
| 3394 | DS.complete(TheDecl); |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3395 | return; |
| 3396 | } |
| 3397 | |
| 3398 | // Read struct-declarators until we find the semicolon. |
John McCall | bdd563e | 2009-11-03 02:38:08 +0000 | [diff] [blame] | 3399 | bool FirstDeclarator = true; |
Richard Smith | 7984de3 | 2012-01-12 23:53:29 +0000 | [diff] [blame] | 3400 | SourceLocation CommaLoc; |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3401 | while (1) { |
Eli Friedman | f66a0dd | 2012-08-08 23:04:35 +0000 | [diff] [blame] | 3402 | ParsingFieldDeclarator DeclaratorInfo(*this, DS); |
Richard Smith | 7984de3 | 2012-01-12 23:53:29 +0000 | [diff] [blame] | 3403 | DeclaratorInfo.D.setCommaLoc(CommaLoc); |
John McCall | bdd563e | 2009-11-03 02:38:08 +0000 | [diff] [blame] | 3404 | |
Bill Wendling | ad017fa | 2012-12-20 19:22:21 +0000 | [diff] [blame] | 3405 | // Attributes are only allowed here on successive declarators. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 3406 | if (!FirstDeclarator) |
| 3407 | MaybeParseGNUAttributes(DeclaratorInfo.D); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3408 | |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3409 | /// struct-declarator: declarator |
| 3410 | /// struct-declarator: declarator[opt] ':' constant-expression |
Chris Lattner | a1efc8c | 2009-12-10 01:59:24 +0000 | [diff] [blame] | 3411 | if (Tok.isNot(tok::colon)) { |
| 3412 | // Don't parse FOO:BAR as if it were a typo for FOO::BAR. |
| 3413 | ColonProtectionRAIIObject X(*this); |
Chris Lattner | e135942 | 2008-04-10 06:46:29 +0000 | [diff] [blame] | 3414 | ParseDeclarator(DeclaratorInfo.D); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 3415 | } else |
| 3416 | DeclaratorInfo.D.SetIdentifier(nullptr, Tok.getLocation()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3417 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3418 | if (TryConsumeToken(tok::colon)) { |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 3419 | ExprResult Res(ParseConstantExpression()); |
Sebastian Redl | 0e9eabc | 2008-12-09 13:15:23 +0000 | [diff] [blame] | 3420 | if (Res.isInvalid()) |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3421 | SkipUntil(tok::semi, StopBeforeMatch); |
Chris Lattner | 60b1e3e | 2008-04-10 06:15:14 +0000 | [diff] [blame] | 3422 | else |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 3423 | DeclaratorInfo.BitfieldSize = Res.get(); |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3424 | } |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 3425 | |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3426 | // If attributes exist after the declarator, parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 3427 | MaybeParseGNUAttributes(DeclaratorInfo.D); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 3428 | |
John McCall | bdd563e | 2009-11-03 02:38:08 +0000 | [diff] [blame] | 3429 | // We're done with this declarator; invoke the callback. |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 3430 | FieldsCallback(DeclaratorInfo); |
John McCall | bdd563e | 2009-11-03 02:38:08 +0000 | [diff] [blame] | 3431 | |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3432 | // If we don't have a comma, it is either the end of the list (a ';') |
| 3433 | // or an error, bail out. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3434 | if (!TryConsumeToken(tok::comma, CommaLoc)) |
Chris Lattner | cd4b83c | 2007-10-29 04:42:53 +0000 | [diff] [blame] | 3435 | return; |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 3436 | |
John McCall | bdd563e | 2009-11-03 02:38:08 +0000 | [diff] [blame] | 3437 | FirstDeclarator = false; |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3438 | } |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3439 | } |
| 3440 | |
| 3441 | /// ParseStructUnionBody |
| 3442 | /// struct-contents: |
| 3443 | /// struct-declaration-list |
| 3444 | /// [EXT] empty |
| 3445 | /// [GNU] "struct-declaration-list" without terminatoring ';' |
| 3446 | /// struct-declaration-list: |
| 3447 | /// struct-declaration |
| 3448 | /// struct-declaration-list struct-declaration |
Chris Lattner | 5a6ddbf | 2008-06-21 19:39:06 +0000 | [diff] [blame] | 3449 | /// [OBC] '@' 'defs' '(' class-name ')' |
Steve Naroff | 28a7ca8 | 2007-08-20 22:28:22 +0000 | [diff] [blame] | 3450 | /// |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3451 | void Parser::ParseStructUnionBody(SourceLocation RecordLoc, |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 3452 | unsigned TagType, Decl *TagDecl) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3453 | PrettyDeclStackTraceEntry CrashInfo(Actions, TagDecl, RecordLoc, |
| 3454 | "parsing struct/union body"); |
Andy Gibbs | f50f3f7 | 2013-04-03 09:31:19 +0000 | [diff] [blame] | 3455 | assert(!getLangOpts().CPlusPlus && "C++ declarations not supported"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3456 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 3457 | BalancedDelimiterTracker T(*this, tok::l_brace); |
| 3458 | if (T.consumeOpen()) |
| 3459 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3460 | |
Douglas Gregor | 3218c4b | 2009-01-09 22:42:13 +0000 | [diff] [blame] | 3461 | ParseScope StructScope(this, Scope::ClassScope|Scope::DeclScope); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 3462 | Actions.ActOnTagStartDefinition(getCurScope(), TagDecl); |
Douglas Gregor | 72de667 | 2009-01-08 20:45:30 +0000 | [diff] [blame] | 3463 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3464 | SmallVector<Decl *, 32> FieldDecls; |
Chris Lattner | e135942 | 2008-04-10 06:46:29 +0000 | [diff] [blame] | 3465 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3466 | // While we still have something to read, read the declarations in the struct. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3467 | while (Tok.isNot(tok::r_brace) && !isEofOrEom()) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3468 | // Each iteration of this loop reads one struct-declaration. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3469 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3470 | // Check for extraneous top-level semicolon. |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 3471 | if (Tok.is(tok::semi)) { |
Richard Smith | eab9d6f | 2012-07-23 05:45:25 +0000 | [diff] [blame] | 3472 | ConsumeExtraSemi(InsideStruct, TagType); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3473 | continue; |
| 3474 | } |
Chris Lattner | e135942 | 2008-04-10 06:46:29 +0000 | [diff] [blame] | 3475 | |
Andy Gibbs | 74b9fa1 | 2013-04-03 09:46:04 +0000 | [diff] [blame] | 3476 | // Parse _Static_assert declaration. |
| 3477 | if (Tok.is(tok::kw__Static_assert)) { |
| 3478 | SourceLocation DeclEnd; |
| 3479 | ParseStaticAssertDeclaration(DeclEnd); |
| 3480 | continue; |
| 3481 | } |
| 3482 | |
Argyrios Kyrtzidis | bd95745 | 2013-04-18 01:42:35 +0000 | [diff] [blame] | 3483 | if (Tok.is(tok::annot_pragma_pack)) { |
| 3484 | HandlePragmaPack(); |
| 3485 | continue; |
| 3486 | } |
| 3487 | |
| 3488 | if (Tok.is(tok::annot_pragma_align)) { |
| 3489 | HandlePragmaAlign(); |
| 3490 | continue; |
| 3491 | } |
| 3492 | |
John McCall | bdd563e | 2009-11-03 02:38:08 +0000 | [diff] [blame] | 3493 | if (!Tok.is(tok::at)) { |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 3494 | auto CFieldCallback = [&](ParsingFieldDeclarator &FD) { |
| 3495 | // Install the declarator into the current TagDecl. |
| 3496 | Decl *Field = |
| 3497 | Actions.ActOnField(getCurScope(), TagDecl, |
| 3498 | FD.D.getDeclSpec().getSourceRange().getBegin(), |
| 3499 | FD.D, FD.BitfieldSize); |
| 3500 | FieldDecls.push_back(Field); |
| 3501 | FD.complete(Field); |
| 3502 | }; |
John McCall | bdd563e | 2009-11-03 02:38:08 +0000 | [diff] [blame] | 3503 | |
Eli Friedman | f66a0dd | 2012-08-08 23:04:35 +0000 | [diff] [blame] | 3504 | // Parse all the comma separated declarators. |
| 3505 | ParsingDeclSpec DS(*this); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 3506 | ParseStructDeclaration(DS, CFieldCallback); |
Chris Lattner | 5a6ddbf | 2008-06-21 19:39:06 +0000 | [diff] [blame] | 3507 | } else { // Handle @defs |
| 3508 | ConsumeToken(); |
| 3509 | if (!Tok.isObjCAtKeyword(tok::objc_defs)) { |
| 3510 | Diag(Tok, diag::err_unexpected_at); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3511 | SkipUntil(tok::semi); |
Chris Lattner | 5a6ddbf | 2008-06-21 19:39:06 +0000 | [diff] [blame] | 3512 | continue; |
| 3513 | } |
| 3514 | ConsumeToken(); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3515 | ExpectAndConsume(tok::l_paren); |
Chris Lattner | 5a6ddbf | 2008-06-21 19:39:06 +0000 | [diff] [blame] | 3516 | if (!Tok.is(tok::identifier)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3517 | Diag(Tok, diag::err_expected) << tok::identifier; |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3518 | SkipUntil(tok::semi); |
Chris Lattner | 5a6ddbf | 2008-06-21 19:39:06 +0000 | [diff] [blame] | 3519 | continue; |
| 3520 | } |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3521 | SmallVector<Decl *, 16> Fields; |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 3522 | Actions.ActOnDefs(getCurScope(), TagDecl, Tok.getLocation(), |
Douglas Gregor | 44b4321 | 2008-12-11 16:49:14 +0000 | [diff] [blame] | 3523 | Tok.getIdentifierInfo(), Fields); |
Chris Lattner | 5a6ddbf | 2008-06-21 19:39:06 +0000 | [diff] [blame] | 3524 | FieldDecls.insert(FieldDecls.end(), Fields.begin(), Fields.end()); |
| 3525 | ConsumeToken(); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3526 | ExpectAndConsume(tok::r_paren); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3527 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3528 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3529 | if (TryConsumeToken(tok::semi)) |
| 3530 | continue; |
| 3531 | |
| 3532 | if (Tok.is(tok::r_brace)) { |
Chris Lattner | 3e156ad | 2010-02-02 00:37:27 +0000 | [diff] [blame] | 3533 | ExpectAndConsume(tok::semi, diag::ext_expected_semi_decl_list); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3534 | break; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3535 | } |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3536 | |
| 3537 | ExpectAndConsume(tok::semi, diag::err_expected_semi_decl_list); |
| 3538 | // Skip to end of block or statement to avoid ext-warning on extra ';'. |
| 3539 | SkipUntil(tok::r_brace, StopAtSemi | StopBeforeMatch); |
| 3540 | // If we stopped at a ';', eat it. |
| 3541 | TryConsumeToken(tok::semi); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3542 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3543 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 3544 | T.consumeClose(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3545 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 3546 | ParsedAttributes attrs(AttrFactory); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3547 | // If attributes exist after struct contents, parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 3548 | MaybeParseGNUAttributes(attrs); |
Daniel Dunbar | 1bfe1c2 | 2008-10-03 02:03:53 +0000 | [diff] [blame] | 3549 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 3550 | Actions.ActOnFields(getCurScope(), |
David Blaikie | 77b6de0 | 2011-09-22 02:58:26 +0000 | [diff] [blame] | 3551 | RecordLoc, TagDecl, FieldDecls, |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 3552 | T.getOpenLocation(), T.getCloseLocation(), |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 3553 | attrs.getList()); |
Douglas Gregor | 72de667 | 2009-01-08 20:45:30 +0000 | [diff] [blame] | 3554 | StructScope.Exit(); |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 3555 | Actions.ActOnTagFinishDefinition(getCurScope(), TagDecl, |
| 3556 | T.getCloseLocation()); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3557 | } |
| 3558 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3559 | /// ParseEnumSpecifier |
| 3560 | /// enum-specifier: [C99 6.7.2.2] |
| 3561 | /// 'enum' identifier[opt] '{' enumerator-list '}' |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 3562 | ///[C99/C++]'enum' identifier[opt] '{' enumerator-list ',' '}' |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3563 | /// [GNU] 'enum' attributes[opt] identifier[opt] '{' enumerator-list ',' [opt] |
| 3564 | /// '}' attributes[opt] |
Aaron Ballman | 6454a02 | 2012-03-01 04:09:28 +0000 | [diff] [blame] | 3565 | /// [MS] 'enum' __declspec[opt] identifier[opt] '{' enumerator-list ',' [opt] |
| 3566 | /// '}' |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3567 | /// 'enum' identifier |
| 3568 | /// [GNU] 'enum' attributes[opt] identifier |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 3569 | /// |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3570 | /// [C++11] enum-head '{' enumerator-list[opt] '}' |
| 3571 | /// [C++11] enum-head '{' enumerator-list ',' '}' |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3572 | /// |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3573 | /// enum-head: [C++11] |
| 3574 | /// enum-key attribute-specifier-seq[opt] identifier[opt] enum-base[opt] |
| 3575 | /// enum-key attribute-specifier-seq[opt] nested-name-specifier |
| 3576 | /// identifier enum-base[opt] |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3577 | /// |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3578 | /// enum-key: [C++11] |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3579 | /// 'enum' |
| 3580 | /// 'enum' 'class' |
| 3581 | /// 'enum' 'struct' |
| 3582 | /// |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3583 | /// enum-base: [C++11] |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3584 | /// ':' type-specifier-seq |
| 3585 | /// |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 3586 | /// [C++] elaborated-type-specifier: |
| 3587 | /// [C++] 'enum' '::'[opt] nested-name-specifier[opt] identifier |
| 3588 | /// |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 3589 | void Parser::ParseEnumSpecifier(SourceLocation StartLoc, DeclSpec &DS, |
Douglas Gregor | 9b9edd6 | 2010-03-02 17:53:14 +0000 | [diff] [blame] | 3590 | const ParsedTemplateInfo &TemplateInfo, |
Richard Smith | 69730c1 | 2012-03-12 07:56:15 +0000 | [diff] [blame] | 3591 | AccessSpecifier AS, DeclSpecContext DSC) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3592 | // Parse the tag portion of this. |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame] | 3593 | if (Tok.is(tok::code_completion)) { |
| 3594 | // Code completion for an enum name. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 3595 | Actions.CodeCompleteTag(getCurScope(), DeclSpec::TST_enum); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 3596 | return cutOffParsing(); |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame] | 3597 | } |
John McCall | 57c1300 | 2011-07-06 05:58:41 +0000 | [diff] [blame] | 3598 | |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 3599 | // If attributes exist after tag, parse them. |
| 3600 | ParsedAttributesWithRange attrs(AttrFactory); |
| 3601 | MaybeParseGNUAttributes(attrs); |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 3602 | MaybeParseCXX11Attributes(attrs); |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 3603 | |
| 3604 | // If declspecs exist after tag, parse them. |
| 3605 | while (Tok.is(tok::kw___declspec)) |
| 3606 | ParseMicrosoftDeclSpec(attrs); |
| 3607 | |
Richard Smith | bdad7a2 | 2012-01-10 01:33:14 +0000 | [diff] [blame] | 3608 | SourceLocation ScopedEnumKWLoc; |
John McCall | 57c1300 | 2011-07-06 05:58:41 +0000 | [diff] [blame] | 3609 | bool IsScopedUsingClassTag = false; |
| 3610 | |
John McCall | 1e12b3d | 2012-06-23 22:30:04 +0000 | [diff] [blame] | 3611 | // In C++11, recognize 'enum class' and 'enum struct'. |
Richard Trieu | ed5a292 | 2013-04-23 02:47:36 +0000 | [diff] [blame] | 3612 | if (Tok.is(tok::kw_class) || Tok.is(tok::kw_struct)) { |
| 3613 | Diag(Tok, getLangOpts().CPlusPlus11 ? diag::warn_cxx98_compat_scoped_enum |
| 3614 | : diag::ext_scoped_enum); |
John McCall | 57c1300 | 2011-07-06 05:58:41 +0000 | [diff] [blame] | 3615 | IsScopedUsingClassTag = Tok.is(tok::kw_class); |
Richard Smith | bdad7a2 | 2012-01-10 01:33:14 +0000 | [diff] [blame] | 3616 | ScopedEnumKWLoc = ConsumeToken(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3617 | |
Bill Wendling | ad017fa | 2012-12-20 19:22:21 +0000 | [diff] [blame] | 3618 | // Attributes are not allowed between these keywords. Diagnose, |
John McCall | 1e12b3d | 2012-06-23 22:30:04 +0000 | [diff] [blame] | 3619 | // but then just treat them like they appeared in the right place. |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 3620 | ProhibitAttributes(attrs); |
John McCall | 1e12b3d | 2012-06-23 22:30:04 +0000 | [diff] [blame] | 3621 | |
| 3622 | // They are allowed afterwards, though. |
| 3623 | MaybeParseGNUAttributes(attrs); |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 3624 | MaybeParseCXX11Attributes(attrs); |
John McCall | 1e12b3d | 2012-06-23 22:30:04 +0000 | [diff] [blame] | 3625 | while (Tok.is(tok::kw___declspec)) |
| 3626 | ParseMicrosoftDeclSpec(attrs); |
John McCall | 57c1300 | 2011-07-06 05:58:41 +0000 | [diff] [blame] | 3627 | } |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3628 | |
John McCall | 1348967 | 2012-05-07 06:16:58 +0000 | [diff] [blame] | 3629 | // C++11 [temp.explicit]p12: |
| 3630 | // The usual access controls do not apply to names used to specify |
| 3631 | // explicit instantiations. |
| 3632 | // We extend this to also cover explicit specializations. Note that |
| 3633 | // we don't suppress if this turns out to be an elaborated type |
| 3634 | // specifier. |
| 3635 | bool shouldDelayDiagsInTag = |
| 3636 | (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation || |
| 3637 | TemplateInfo.Kind == ParsedTemplateInfo::ExplicitSpecialization); |
| 3638 | SuppressAccessChecks diagsFromTag(*this, shouldDelayDiagsInTag); |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3639 | |
Richard Smith | 7796eb5 | 2012-03-12 08:56:40 +0000 | [diff] [blame] | 3640 | // Enum definitions should not be parsed in a trailing-return-type. |
| 3641 | bool AllowDeclaration = DSC != DSC_trailing; |
| 3642 | |
| 3643 | bool AllowFixedUnderlyingType = AllowDeclaration && |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 3644 | (getLangOpts().CPlusPlus11 || getLangOpts().MicrosoftExt || |
Richard Smith | 7796eb5 | 2012-03-12 08:56:40 +0000 | [diff] [blame] | 3645 | getLangOpts().ObjC2); |
John McCall | 57c1300 | 2011-07-06 05:58:41 +0000 | [diff] [blame] | 3646 | |
Abramo Bagnara | e4da7a0 | 2010-05-19 21:37:53 +0000 | [diff] [blame] | 3647 | CXXScopeSpec &SS = DS.getTypeSpecScope(); |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3648 | if (getLangOpts().CPlusPlus) { |
John McCall | 57c1300 | 2011-07-06 05:58:41 +0000 | [diff] [blame] | 3649 | // "enum foo : bar;" is not a potential typo for "enum foo::bar;" |
| 3650 | // if a fixed underlying type is allowed. |
| 3651 | ColonProtectionRAIIObject X(*this, AllowFixedUnderlyingType); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3652 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3653 | CXXScopeSpec Spec; |
| 3654 | if (ParseOptionalCXXScopeSpecifier(Spec, ParsedType(), |
Richard Smith | 725fe0e | 2013-04-01 21:43:41 +0000 | [diff] [blame] | 3655 | /*EnteringContext=*/true)) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 3656 | return; |
| 3657 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3658 | if (Spec.isSet() && Tok.isNot(tok::identifier)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3659 | Diag(Tok, diag::err_expected) << tok::identifier; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 3660 | if (Tok.isNot(tok::l_brace)) { |
| 3661 | // Has no name and is not a definition. |
| 3662 | // Skip the rest of this declarator, up until the comma or semicolon. |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3663 | SkipUntil(tok::comma, StopAtSemi); |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 3664 | return; |
| 3665 | } |
| 3666 | } |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 3667 | |
| 3668 | SS = Spec; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 3669 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3670 | |
Argyrios Kyrtzidis | e281b4c | 2008-09-11 00:21:41 +0000 | [diff] [blame] | 3671 | // Must have either 'enum name' or 'enum {...}'. |
Douglas Gregor | b907560 | 2011-02-22 02:55:24 +0000 | [diff] [blame] | 3672 | if (Tok.isNot(tok::identifier) && Tok.isNot(tok::l_brace) && |
Richard Smith | 7796eb5 | 2012-03-12 08:56:40 +0000 | [diff] [blame] | 3673 | !(AllowFixedUnderlyingType && Tok.is(tok::colon))) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3674 | Diag(Tok, diag::err_expected_either) << tok::identifier << tok::l_brace; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3675 | |
Argyrios Kyrtzidis | e281b4c | 2008-09-11 00:21:41 +0000 | [diff] [blame] | 3676 | // Skip the rest of this declarator, up until the comma or semicolon. |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3677 | SkipUntil(tok::comma, StopAtSemi); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3678 | return; |
Argyrios Kyrtzidis | e281b4c | 2008-09-11 00:21:41 +0000 | [diff] [blame] | 3679 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3680 | |
Argyrios Kyrtzidis | e281b4c | 2008-09-11 00:21:41 +0000 | [diff] [blame] | 3681 | // If an identifier is present, consume and remember it. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 3682 | IdentifierInfo *Name = nullptr; |
Argyrios Kyrtzidis | e281b4c | 2008-09-11 00:21:41 +0000 | [diff] [blame] | 3683 | SourceLocation NameLoc; |
| 3684 | if (Tok.is(tok::identifier)) { |
| 3685 | Name = Tok.getIdentifierInfo(); |
| 3686 | NameLoc = ConsumeToken(); |
| 3687 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3688 | |
Richard Smith | bdad7a2 | 2012-01-10 01:33:14 +0000 | [diff] [blame] | 3689 | if (!Name && ScopedEnumKWLoc.isValid()) { |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3690 | // C++0x 7.2p2: The optional identifier shall not be omitted in the |
| 3691 | // declaration of a scoped enumeration. |
| 3692 | Diag(Tok, diag::err_scoped_enum_missing_identifier); |
Richard Smith | bdad7a2 | 2012-01-10 01:33:14 +0000 | [diff] [blame] | 3693 | ScopedEnumKWLoc = SourceLocation(); |
Abramo Bagnara | a88cefd | 2010-12-03 18:54:17 +0000 | [diff] [blame] | 3694 | IsScopedUsingClassTag = false; |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3695 | } |
| 3696 | |
John McCall | 1348967 | 2012-05-07 06:16:58 +0000 | [diff] [blame] | 3697 | // Okay, end the suppression area. We'll decide whether to emit the |
| 3698 | // diagnostics in a second. |
| 3699 | if (shouldDelayDiagsInTag) |
| 3700 | diagsFromTag.done(); |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3701 | |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3702 | TypeResult BaseType; |
| 3703 | |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3704 | // Parse the fixed underlying type. |
Richard Smith | 139be70 | 2012-07-02 19:14:01 +0000 | [diff] [blame] | 3705 | bool CanBeBitfield = getCurScope()->getFlags() & Scope::ClassScope; |
Douglas Gregor | b907560 | 2011-02-22 02:55:24 +0000 | [diff] [blame] | 3706 | if (AllowFixedUnderlyingType && Tok.is(tok::colon)) { |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3707 | bool PossibleBitfield = false; |
Richard Smith | 139be70 | 2012-07-02 19:14:01 +0000 | [diff] [blame] | 3708 | if (CanBeBitfield) { |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3709 | // If we're in class scope, this can either be an enum declaration with |
| 3710 | // an underlying type, or a declaration of a bitfield member. We try to |
| 3711 | // use a simple disambiguation scheme first to catch the common cases |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3712 | // (integer literal, sizeof); if it's still ambiguous, we then consider |
| 3713 | // anything that's a simple-type-specifier followed by '(' as an |
| 3714 | // expression. This suffices because function types are not valid |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3715 | // underlying types anyway. |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 3716 | EnterExpressionEvaluationContext Unevaluated(Actions, |
| 3717 | Sema::ConstantEvaluated); |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3718 | TPResult TPR = isExpressionOrTypeSpecifierSimple(NextToken().getKind()); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3719 | // If the next token starts an expression, we know we're parsing a |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3720 | // bit-field. This is the common case. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 3721 | if (TPR == TPResult::True) |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3722 | PossibleBitfield = true; |
| 3723 | // If the next token starts a type-specifier-seq, it may be either a |
| 3724 | // a fixed underlying type or the start of a function-style cast in C++; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3725 | // lookahead one more token to see if it's obvious that we have a |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3726 | // fixed underlying type. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 3727 | else if (TPR == TPResult::False && |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3728 | GetLookAheadToken(2).getKind() == tok::semi) { |
| 3729 | // Consume the ':'. |
| 3730 | ConsumeToken(); |
| 3731 | } else { |
| 3732 | // We have the start of a type-specifier-seq, so we have to perform |
| 3733 | // tentative parsing to determine whether we have an expression or a |
| 3734 | // type. |
| 3735 | TentativeParsingAction TPA(*this); |
| 3736 | |
| 3737 | // Consume the ':'. |
| 3738 | ConsumeToken(); |
Richard Smith | d81e961 | 2012-02-23 01:36:12 +0000 | [diff] [blame] | 3739 | |
| 3740 | // If we see a type specifier followed by an open-brace, we have an |
| 3741 | // ambiguity between an underlying type and a C++11 braced |
| 3742 | // function-style cast. Resolve this by always treating it as an |
| 3743 | // underlying type. |
| 3744 | // FIXME: The standard is not entirely clear on how to disambiguate in |
| 3745 | // this case. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3746 | if ((getLangOpts().CPlusPlus && |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 3747 | isCXXDeclarationSpecifier(TPResult::True) != TPResult::True) || |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3748 | (!getLangOpts().CPlusPlus && !isDeclarationSpecifier(true))) { |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3749 | // We'll parse this as a bitfield later. |
| 3750 | PossibleBitfield = true; |
| 3751 | TPA.Revert(); |
| 3752 | } else { |
| 3753 | // We have a type-specifier-seq. |
| 3754 | TPA.Commit(); |
| 3755 | } |
| 3756 | } |
| 3757 | } else { |
| 3758 | // Consume the ':'. |
| 3759 | ConsumeToken(); |
| 3760 | } |
| 3761 | |
| 3762 | if (!PossibleBitfield) { |
| 3763 | SourceRange Range; |
| 3764 | BaseType = ParseTypeName(&Range); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3765 | |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 3766 | if (getLangOpts().CPlusPlus11) { |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 3767 | Diag(StartLoc, diag::warn_cxx98_compat_enum_fixed_underlying_type); |
Eli Friedman | cef3a7b | 2012-11-02 01:34:28 +0000 | [diff] [blame] | 3768 | } else if (!getLangOpts().ObjC2) { |
| 3769 | if (getLangOpts().CPlusPlus) |
| 3770 | Diag(StartLoc, diag::ext_cxx11_enum_fixed_underlying_type) << Range; |
| 3771 | else |
| 3772 | Diag(StartLoc, diag::ext_c_enum_fixed_underlying_type) << Range; |
| 3773 | } |
Douglas Gregor | a61b3e7 | 2010-12-01 17:42:47 +0000 | [diff] [blame] | 3774 | } |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3775 | } |
| 3776 | |
Richard Smith | bdad7a2 | 2012-01-10 01:33:14 +0000 | [diff] [blame] | 3777 | // There are four options here. If we have 'friend enum foo;' then this is a |
| 3778 | // friend declaration, and cannot have an accompanying definition. If we have |
| 3779 | // 'enum foo;', then this is a forward declaration. If we have |
| 3780 | // 'enum foo {...' then this is a definition. Otherwise we have something |
| 3781 | // like 'enum foo xyz', a reference. |
Argyrios Kyrtzidis | e281b4c | 2008-09-11 00:21:41 +0000 | [diff] [blame] | 3782 | // |
| 3783 | // This is needed to handle stuff like this right (C99 6.7.2.3p11): |
| 3784 | // enum foo {..}; void bar() { enum foo; } <- new foo in bar. |
| 3785 | // enum foo {..}; void bar() { enum foo x; } <- use of old foo. |
| 3786 | // |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3787 | Sema::TagUseKind TUK; |
John McCall | 1348967 | 2012-05-07 06:16:58 +0000 | [diff] [blame] | 3788 | if (!AllowDeclaration) { |
Richard Smith | 7796eb5 | 2012-03-12 08:56:40 +0000 | [diff] [blame] | 3789 | TUK = Sema::TUK_Reference; |
John McCall | 1348967 | 2012-05-07 06:16:58 +0000 | [diff] [blame] | 3790 | } else if (Tok.is(tok::l_brace)) { |
| 3791 | if (DS.isFriendSpecified()) { |
| 3792 | Diag(Tok.getLocation(), diag::err_friend_decl_defines_type) |
| 3793 | << SourceRange(DS.getFriendSpecLoc()); |
| 3794 | ConsumeBrace(); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3795 | SkipUntil(tok::r_brace, StopAtSemi); |
John McCall | 1348967 | 2012-05-07 06:16:58 +0000 | [diff] [blame] | 3796 | TUK = Sema::TUK_Friend; |
| 3797 | } else { |
| 3798 | TUK = Sema::TUK_Definition; |
| 3799 | } |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3800 | } else if (!isTypeSpecifier(DSC) && |
Richard Smith | c9f3517 | 2012-06-25 21:37:02 +0000 | [diff] [blame] | 3801 | (Tok.is(tok::semi) || |
Richard Smith | 139be70 | 2012-07-02 19:14:01 +0000 | [diff] [blame] | 3802 | (Tok.isAtStartOfLine() && |
| 3803 | !isValidAfterTypeSpecifier(CanBeBitfield)))) { |
Richard Smith | c9f3517 | 2012-06-25 21:37:02 +0000 | [diff] [blame] | 3804 | TUK = DS.isFriendSpecified() ? Sema::TUK_Friend : Sema::TUK_Declaration; |
| 3805 | if (Tok.isNot(tok::semi)) { |
| 3806 | // A semicolon was missing after this declaration. Diagnose and recover. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3807 | ExpectAndConsume(tok::semi, diag::err_expected_after, "enum"); |
Richard Smith | c9f3517 | 2012-06-25 21:37:02 +0000 | [diff] [blame] | 3808 | PP.EnterToken(Tok); |
| 3809 | Tok.setKind(tok::semi); |
| 3810 | } |
John McCall | 1348967 | 2012-05-07 06:16:58 +0000 | [diff] [blame] | 3811 | } else { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3812 | TUK = Sema::TUK_Reference; |
John McCall | 1348967 | 2012-05-07 06:16:58 +0000 | [diff] [blame] | 3813 | } |
| 3814 | |
| 3815 | // If this is an elaborated type specifier, and we delayed |
| 3816 | // diagnostics before, just merge them into the current pool. |
| 3817 | if (TUK == Sema::TUK_Reference && shouldDelayDiagsInTag) { |
| 3818 | diagsFromTag.redelay(); |
| 3819 | } |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3820 | |
| 3821 | MultiTemplateParamsArg TParams; |
Douglas Gregor | 8fc6d23 | 2010-05-03 17:48:54 +0000 | [diff] [blame] | 3822 | if (TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3823 | TUK != Sema::TUK_Reference) { |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 3824 | if (!getLangOpts().CPlusPlus11 || !SS.isSet()) { |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3825 | // Skip the rest of this declarator, up until the comma or semicolon. |
| 3826 | Diag(Tok, diag::err_enum_template); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3827 | SkipUntil(tok::comma, StopAtSemi); |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3828 | return; |
| 3829 | } |
| 3830 | |
| 3831 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) { |
| 3832 | // Enumerations can't be explicitly instantiated. |
| 3833 | DS.SetTypeSpecError(); |
| 3834 | Diag(StartLoc, diag::err_explicit_instantiation_enum); |
| 3835 | return; |
| 3836 | } |
| 3837 | |
| 3838 | assert(TemplateInfo.TemplateParams && "no template parameters"); |
| 3839 | TParams = MultiTemplateParamsArg(TemplateInfo.TemplateParams->data(), |
| 3840 | TemplateInfo.TemplateParams->size()); |
Douglas Gregor | 8fc6d23 | 2010-05-03 17:48:54 +0000 | [diff] [blame] | 3841 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3842 | |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 3843 | if (TUK == Sema::TUK_Reference) |
| 3844 | ProhibitAttributes(attrs); |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3845 | |
Douglas Gregor | b907560 | 2011-02-22 02:55:24 +0000 | [diff] [blame] | 3846 | if (!Name && TUK != Sema::TUK_Definition) { |
| 3847 | Diag(Tok, diag::err_enumerator_unnamed_no_def); |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3848 | |
Douglas Gregor | b907560 | 2011-02-22 02:55:24 +0000 | [diff] [blame] | 3849 | // Skip the rest of this declarator, up until the comma or semicolon. |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3850 | SkipUntil(tok::comma, StopAtSemi); |
Douglas Gregor | b907560 | 2011-02-22 02:55:24 +0000 | [diff] [blame] | 3851 | return; |
| 3852 | } |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3853 | |
Douglas Gregor | 402abb5 | 2009-05-28 23:31:59 +0000 | [diff] [blame] | 3854 | bool Owned = false; |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 3855 | bool IsDependent = false; |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 3856 | const char *PrevSpec = nullptr; |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3857 | unsigned DiagID; |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 3858 | Decl *TagDecl = Actions.ActOnTag(getCurScope(), DeclSpec::TST_enum, TUK, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 3859 | StartLoc, SS, Name, NameLoc, attrs.getList(), |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 3860 | AS, DS.getModulePrivateSpecLoc(), TParams, |
Richard Smith | bdad7a2 | 2012-01-10 01:33:14 +0000 | [diff] [blame] | 3861 | Owned, IsDependent, ScopedEnumKWLoc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3862 | IsScopedUsingClassTag, BaseType, |
| 3863 | DSC == DSC_type_specifier); |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 3864 | |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3865 | if (IsDependent) { |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3866 | // This enum has a dependent nested-name-specifier. Handle it as a |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3867 | // dependent tag. |
| 3868 | if (!Name) { |
| 3869 | DS.SetTypeSpecError(); |
| 3870 | Diag(Tok, diag::err_expected_type_name_after_typename); |
| 3871 | return; |
| 3872 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3873 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 3874 | TypeResult Type = Actions.ActOnDependentTag( |
| 3875 | getCurScope(), DeclSpec::TST_enum, TUK, SS, Name, StartLoc, NameLoc); |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3876 | if (Type.isInvalid()) { |
| 3877 | DS.SetTypeSpecError(); |
| 3878 | return; |
| 3879 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3880 | |
Abramo Bagnara | 0daaf32 | 2011-03-16 20:16:18 +0000 | [diff] [blame] | 3881 | if (DS.SetTypeSpecType(DeclSpec::TST_typename, StartLoc, |
| 3882 | NameLoc.isValid() ? NameLoc : StartLoc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3883 | PrevSpec, DiagID, Type.get(), |
| 3884 | Actions.getASTContext().getPrintingPolicy())) |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3885 | Diag(StartLoc, DiagID) << PrevSpec; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3886 | |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3887 | return; |
| 3888 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3889 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 3890 | if (!TagDecl) { |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3891 | // The action failed to produce an enumeration tag. If this is a |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3892 | // definition, consume the entire definition. |
Richard Smith | 7796eb5 | 2012-03-12 08:56:40 +0000 | [diff] [blame] | 3893 | if (Tok.is(tok::l_brace) && TUK != Sema::TUK_Reference) { |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3894 | ConsumeBrace(); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 3895 | SkipUntil(tok::r_brace, StopAtSemi); |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3896 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3897 | |
Douglas Gregor | 48c89f4 | 2010-04-24 16:38:41 +0000 | [diff] [blame] | 3898 | DS.SetTypeSpecError(); |
| 3899 | return; |
| 3900 | } |
Richard Smith | bdad7a2 | 2012-01-10 01:33:14 +0000 | [diff] [blame] | 3901 | |
Richard Smith | c9f3517 | 2012-06-25 21:37:02 +0000 | [diff] [blame] | 3902 | if (Tok.is(tok::l_brace) && TUK != Sema::TUK_Reference) |
John McCall | 1348967 | 2012-05-07 06:16:58 +0000 | [diff] [blame] | 3903 | ParseEnumBody(StartLoc, TagDecl); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3904 | |
Abramo Bagnara | 0daaf32 | 2011-03-16 20:16:18 +0000 | [diff] [blame] | 3905 | if (DS.SetTypeSpecType(DeclSpec::TST_enum, StartLoc, |
| 3906 | NameLoc.isValid() ? NameLoc : StartLoc, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3907 | PrevSpec, DiagID, TagDecl, Owned, |
| 3908 | Actions.getASTContext().getPrintingPolicy())) |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 3909 | Diag(StartLoc, DiagID) << PrevSpec; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3910 | } |
| 3911 | |
| 3912 | /// ParseEnumBody - Parse a {} enclosed enumerator-list. |
| 3913 | /// enumerator-list: |
| 3914 | /// enumerator |
| 3915 | /// enumerator-list ',' enumerator |
| 3916 | /// enumerator: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 3917 | /// enumeration-constant attributes[opt] |
| 3918 | /// enumeration-constant attributes[opt] '=' constant-expression |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3919 | /// enumeration-constant: |
| 3920 | /// identifier |
| 3921 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 3922 | void Parser::ParseEnumBody(SourceLocation StartLoc, Decl *EnumDecl) { |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 3923 | // Enter the scope of the enum body and start the definition. |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 3924 | ParseScope EnumScope(this, Scope::DeclScope | Scope::EnumScope); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 3925 | Actions.ActOnTagStartDefinition(getCurScope(), EnumDecl); |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 3926 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 3927 | BalancedDelimiterTracker T(*this, tok::l_brace); |
| 3928 | T.consumeOpen(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3929 | |
Chris Lattner | 7946dd3 | 2007-08-27 17:24:30 +0000 | [diff] [blame] | 3930 | // C does not allow an empty enumerator-list, C++ does [dcl.enum]. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3931 | if (Tok.is(tok::r_brace) && !getLangOpts().CPlusPlus) |
Fariborz Jahanian | 0511552 | 2010-05-28 22:23:22 +0000 | [diff] [blame] | 3932 | Diag(Tok, diag::error_empty_enum); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3933 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3934 | SmallVector<Decl *, 32> EnumConstantDecls; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3935 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 3936 | Decl *LastEnumConstDecl = nullptr; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3937 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3938 | // Parse the enumerator-list. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3939 | while (Tok.isNot(tok::r_brace)) { |
| 3940 | // Parse enumerator. If failed, try skipping till the start of the next |
| 3941 | // enumerator definition. |
| 3942 | if (Tok.isNot(tok::identifier)) { |
| 3943 | Diag(Tok.getLocation(), diag::err_expected) << tok::identifier; |
| 3944 | if (SkipUntil(tok::comma, tok::r_brace, StopBeforeMatch) && |
| 3945 | TryConsumeToken(tok::comma)) |
| 3946 | continue; |
| 3947 | break; |
| 3948 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3949 | IdentifierInfo *Ident = Tok.getIdentifierInfo(); |
| 3950 | SourceLocation IdentLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3951 | |
John McCall | 5b629aa | 2010-10-22 23:36:17 +0000 | [diff] [blame] | 3952 | // If attributes exist after the enumerator, parse them. |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 3953 | ParsedAttributesWithRange attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 3954 | MaybeParseGNUAttributes(attrs); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 3955 | ProhibitAttributes(attrs); // GNU-style attributes are prohibited. |
| 3956 | if (getLangOpts().CPlusPlus11 && isCXX11AttributeSpecifier()) { |
| 3957 | if (!getLangOpts().CPlusPlus1z) |
| 3958 | Diag(Tok.getLocation(), diag::warn_cxx14_compat_attribute) |
| 3959 | << 1 /*enumerator*/; |
| 3960 | ParseCXX11Attributes(attrs); |
| 3961 | } |
John McCall | 5b629aa | 2010-10-22 23:36:17 +0000 | [diff] [blame] | 3962 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3963 | SourceLocation EqualLoc; |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 3964 | ExprResult AssignedVal; |
John McCall | 9257664 | 2012-05-07 06:16:41 +0000 | [diff] [blame] | 3965 | ParsingDeclRAIIObject PD(*this, ParsingDeclRAIIObject::NoParent); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3966 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3967 | if (TryConsumeToken(tok::equal, EqualLoc)) { |
Sebastian Redl | 0e9eabc | 2008-12-09 13:15:23 +0000 | [diff] [blame] | 3968 | AssignedVal = ParseConstantExpression(); |
| 3969 | if (AssignedVal.isInvalid()) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3970 | SkipUntil(tok::comma, tok::r_brace, StopBeforeMatch); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3971 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3972 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3973 | // Install the enumerator constant into EnumDecl. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 3974 | Decl *EnumConstDecl = Actions.ActOnEnumConstant(getCurScope(), EnumDecl, |
| 3975 | LastEnumConstDecl, |
| 3976 | IdentLoc, Ident, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 3977 | attrs.getList(), EqualLoc, |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 3978 | AssignedVal.get()); |
Fariborz Jahanian | 5a477db | 2011-12-09 01:15:54 +0000 | [diff] [blame] | 3979 | PD.complete(EnumConstDecl); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3980 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 3981 | EnumConstantDecls.push_back(EnumConstDecl); |
| 3982 | LastEnumConstDecl = EnumConstDecl; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3983 | |
Douglas Gregor | 751f692 | 2010-09-07 14:51:08 +0000 | [diff] [blame] | 3984 | if (Tok.is(tok::identifier)) { |
| 3985 | // We're missing a comma between enumerators. |
| 3986 | SourceLocation Loc = PP.getLocForEndOfToken(PrevTokLocation); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3987 | Diag(Loc, diag::err_enumerator_list_missing_comma) |
Douglas Gregor | 751f692 | 2010-09-07 14:51:08 +0000 | [diff] [blame] | 3988 | << FixItHint::CreateInsertion(Loc, ", "); |
| 3989 | continue; |
| 3990 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 3991 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 3992 | // Emumerator definition must be finished, only comma or r_brace are |
| 3993 | // allowed here. |
| 3994 | SourceLocation CommaLoc; |
| 3995 | if (Tok.isNot(tok::r_brace) && !TryConsumeToken(tok::comma, CommaLoc)) { |
| 3996 | if (EqualLoc.isValid()) |
| 3997 | Diag(Tok.getLocation(), diag::err_expected_either) << tok::r_brace |
| 3998 | << tok::comma; |
| 3999 | else |
| 4000 | Diag(Tok.getLocation(), diag::err_expected_end_of_enumerator); |
| 4001 | if (SkipUntil(tok::comma, tok::r_brace, StopBeforeMatch)) { |
| 4002 | if (TryConsumeToken(tok::comma, CommaLoc)) |
| 4003 | continue; |
| 4004 | } else { |
| 4005 | break; |
| 4006 | } |
| 4007 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4008 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 4009 | // If comma is followed by r_brace, emit appropriate warning. |
| 4010 | if (Tok.is(tok::r_brace) && CommaLoc.isValid()) { |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 4011 | if (!getLangOpts().C99 && !getLangOpts().CPlusPlus11) |
Richard Smith | eab9d6f | 2012-07-23 05:45:25 +0000 | [diff] [blame] | 4012 | Diag(CommaLoc, getLangOpts().CPlusPlus ? |
| 4013 | diag::ext_enumerator_list_comma_cxx : |
| 4014 | diag::ext_enumerator_list_comma_c) |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 4015 | << FixItHint::CreateRemoval(CommaLoc); |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 4016 | else if (getLangOpts().CPlusPlus11) |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 4017 | Diag(CommaLoc, diag::warn_cxx98_compat_enumerator_list_comma) |
| 4018 | << FixItHint::CreateRemoval(CommaLoc); |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 4019 | break; |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 4020 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4021 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4022 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4023 | // Eat the }. |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 4024 | T.consumeClose(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4025 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4026 | // If attributes exist after the identifier list, parse them. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4027 | ParsedAttributes attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 4028 | MaybeParseGNUAttributes(attrs); |
Douglas Gregor | 72de667 | 2009-01-08 20:45:30 +0000 | [diff] [blame] | 4029 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 4030 | Actions.ActOnEnumBody(StartLoc, T.getOpenLocation(), T.getCloseLocation(), |
Dmitri Gribenko | 9ff2b42 | 2013-04-27 20:23:52 +0000 | [diff] [blame] | 4031 | EnumDecl, EnumConstantDecls, |
| 4032 | getCurScope(), |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 4033 | attrs.getList()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4034 | |
Douglas Gregor | 72de667 | 2009-01-08 20:45:30 +0000 | [diff] [blame] | 4035 | EnumScope.Exit(); |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 4036 | Actions.ActOnTagFinishDefinition(getCurScope(), EnumDecl, |
| 4037 | T.getCloseLocation()); |
Richard Smith | c9f3517 | 2012-06-25 21:37:02 +0000 | [diff] [blame] | 4038 | |
| 4039 | // The next token must be valid after an enum definition. If not, a ';' |
| 4040 | // was probably forgotten. |
Richard Smith | 139be70 | 2012-07-02 19:14:01 +0000 | [diff] [blame] | 4041 | bool CanBeBitfield = getCurScope()->getFlags() & Scope::ClassScope; |
| 4042 | if (!isValidAfterTypeSpecifier(CanBeBitfield)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 4043 | ExpectAndConsume(tok::semi, diag::err_expected_after, "enum"); |
Richard Smith | c9f3517 | 2012-06-25 21:37:02 +0000 | [diff] [blame] | 4044 | // Push this token back into the preprocessor and change our current token |
| 4045 | // to ';' so that the rest of the code recovers as though there were an |
| 4046 | // ';' after the definition. |
| 4047 | PP.EnterToken(Tok); |
| 4048 | Tok.setKind(tok::semi); |
| 4049 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4050 | } |
| 4051 | |
| 4052 | /// isTypeSpecifierQualifier - Return true if the current token could be the |
Steve Naroff | 5f8aa69 | 2008-02-11 23:15:56 +0000 | [diff] [blame] | 4053 | /// start of a type-qualifier-list. |
| 4054 | bool Parser::isTypeQualifier() const { |
| 4055 | switch (Tok.getKind()) { |
| 4056 | default: return false; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 4057 | // type-qualifier |
Steve Naroff | 5f8aa69 | 2008-02-11 23:15:56 +0000 | [diff] [blame] | 4058 | case tok::kw_const: |
| 4059 | case tok::kw_volatile: |
| 4060 | case tok::kw_restrict: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4061 | case tok::kw___private: |
| 4062 | case tok::kw___local: |
| 4063 | case tok::kw___global: |
| 4064 | case tok::kw___constant: |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4065 | case tok::kw___generic: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4066 | case tok::kw___read_only: |
| 4067 | case tok::kw___read_write: |
| 4068 | case tok::kw___write_only: |
Steve Naroff | 5f8aa69 | 2008-02-11 23:15:56 +0000 | [diff] [blame] | 4069 | return true; |
| 4070 | } |
| 4071 | } |
| 4072 | |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 4073 | /// isKnownToBeTypeSpecifier - Return true if we know that the specified token |
| 4074 | /// is definitely a type-specifier. Return false if it isn't part of a type |
| 4075 | /// specifier or if we're not sure. |
| 4076 | bool Parser::isKnownToBeTypeSpecifier(const Token &Tok) const { |
| 4077 | switch (Tok.getKind()) { |
| 4078 | default: return false; |
| 4079 | // type-specifiers |
| 4080 | case tok::kw_short: |
| 4081 | case tok::kw_long: |
Francois Pichet | 338d7f7 | 2011-04-28 01:59:37 +0000 | [diff] [blame] | 4082 | case tok::kw___int64: |
Richard Smith | 5a5a971 | 2012-04-04 06:24:32 +0000 | [diff] [blame] | 4083 | case tok::kw___int128: |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 4084 | case tok::kw_signed: |
| 4085 | case tok::kw_unsigned: |
| 4086 | case tok::kw__Complex: |
| 4087 | case tok::kw__Imaginary: |
| 4088 | case tok::kw_void: |
| 4089 | case tok::kw_char: |
| 4090 | case tok::kw_wchar_t: |
| 4091 | case tok::kw_char16_t: |
| 4092 | case tok::kw_char32_t: |
| 4093 | case tok::kw_int: |
Anton Korobeynikov | aa4a99b | 2011-10-14 23:23:15 +0000 | [diff] [blame] | 4094 | case tok::kw_half: |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 4095 | case tok::kw_float: |
| 4096 | case tok::kw_double: |
| 4097 | case tok::kw_bool: |
| 4098 | case tok::kw__Bool: |
| 4099 | case tok::kw__Decimal32: |
| 4100 | case tok::kw__Decimal64: |
| 4101 | case tok::kw__Decimal128: |
| 4102 | case tok::kw___vector: |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4103 | |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 4104 | // struct-or-union-specifier (C99) or class-specifier (C++) |
| 4105 | case tok::kw_class: |
| 4106 | case tok::kw_struct: |
Joao Matos | 6666ed4 | 2012-08-31 18:45:21 +0000 | [diff] [blame] | 4107 | case tok::kw___interface: |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 4108 | case tok::kw_union: |
| 4109 | // enum-specifier |
| 4110 | case tok::kw_enum: |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4111 | |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 4112 | // typedef-name |
| 4113 | case tok::annot_typename: |
| 4114 | return true; |
| 4115 | } |
| 4116 | } |
| 4117 | |
Steve Naroff | 5f8aa69 | 2008-02-11 23:15:56 +0000 | [diff] [blame] | 4118 | /// isTypeSpecifierQualifier - Return true if the current token could be the |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4119 | /// start of a specifier-qualifier-list. |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 4120 | bool Parser::isTypeSpecifierQualifier() { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4121 | switch (Tok.getKind()) { |
| 4122 | default: return false; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4123 | |
Chris Lattner | 166a8fc | 2009-01-04 23:41:41 +0000 | [diff] [blame] | 4124 | case tok::identifier: // foo::bar |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 4125 | if (TryAltiVecVectorToken()) |
| 4126 | return true; |
| 4127 | // Fall through. |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 4128 | case tok::kw_typename: // typename T::type |
Chris Lattner | 166a8fc | 2009-01-04 23:41:41 +0000 | [diff] [blame] | 4129 | // Annotate typenames and C++ scope specifiers. If we get one, just |
| 4130 | // recurse to handle whatever we get. |
| 4131 | if (TryAnnotateTypeOrScopeToken()) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 4132 | return true; |
| 4133 | if (Tok.is(tok::identifier)) |
| 4134 | return false; |
| 4135 | return isTypeSpecifierQualifier(); |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 4136 | |
Chris Lattner | 166a8fc | 2009-01-04 23:41:41 +0000 | [diff] [blame] | 4137 | case tok::coloncolon: // ::foo::bar |
| 4138 | if (NextToken().is(tok::kw_new) || // ::new |
| 4139 | NextToken().is(tok::kw_delete)) // ::delete |
| 4140 | return false; |
| 4141 | |
Chris Lattner | 166a8fc | 2009-01-04 23:41:41 +0000 | [diff] [blame] | 4142 | if (TryAnnotateTypeOrScopeToken()) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 4143 | return true; |
| 4144 | return isTypeSpecifierQualifier(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4145 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4146 | // GNU attributes support. |
| 4147 | case tok::kw___attribute: |
Steve Naroff | d1861fd | 2007-07-31 12:34:36 +0000 | [diff] [blame] | 4148 | // GNU typeof support. |
| 4149 | case tok::kw_typeof: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4150 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4151 | // type-specifiers |
| 4152 | case tok::kw_short: |
| 4153 | case tok::kw_long: |
Francois Pichet | 338d7f7 | 2011-04-28 01:59:37 +0000 | [diff] [blame] | 4154 | case tok::kw___int64: |
Richard Smith | 5a5a971 | 2012-04-04 06:24:32 +0000 | [diff] [blame] | 4155 | case tok::kw___int128: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4156 | case tok::kw_signed: |
| 4157 | case tok::kw_unsigned: |
| 4158 | case tok::kw__Complex: |
| 4159 | case tok::kw__Imaginary: |
| 4160 | case tok::kw_void: |
| 4161 | case tok::kw_char: |
Argyrios Kyrtzidis | 64c438a | 2008-08-09 16:51:54 +0000 | [diff] [blame] | 4162 | case tok::kw_wchar_t: |
Alisdair Meredith | f5c209d | 2009-07-14 06:30:34 +0000 | [diff] [blame] | 4163 | case tok::kw_char16_t: |
| 4164 | case tok::kw_char32_t: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4165 | case tok::kw_int: |
Anton Korobeynikov | aa4a99b | 2011-10-14 23:23:15 +0000 | [diff] [blame] | 4166 | case tok::kw_half: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4167 | case tok::kw_float: |
| 4168 | case tok::kw_double: |
Chris Lattner | 9298d96 | 2007-11-15 05:25:19 +0000 | [diff] [blame] | 4169 | case tok::kw_bool: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4170 | case tok::kw__Bool: |
| 4171 | case tok::kw__Decimal32: |
| 4172 | case tok::kw__Decimal64: |
| 4173 | case tok::kw__Decimal128: |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 4174 | case tok::kw___vector: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4175 | |
Chris Lattner | 99dc914 | 2008-04-13 18:59:07 +0000 | [diff] [blame] | 4176 | // struct-or-union-specifier (C99) or class-specifier (C++) |
| 4177 | case tok::kw_class: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4178 | case tok::kw_struct: |
Joao Matos | 6666ed4 | 2012-08-31 18:45:21 +0000 | [diff] [blame] | 4179 | case tok::kw___interface: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4180 | case tok::kw_union: |
| 4181 | // enum-specifier |
| 4182 | case tok::kw_enum: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4183 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4184 | // type-qualifier |
| 4185 | case tok::kw_const: |
| 4186 | case tok::kw_volatile: |
| 4187 | case tok::kw_restrict: |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 4188 | |
John McCall | b8a8de3 | 2012-11-14 00:49:39 +0000 | [diff] [blame] | 4189 | // Debugger support. |
| 4190 | case tok::kw___unknown_anytype: |
| 4191 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 4192 | // typedef-name |
Chris Lattner | b31757b | 2009-01-06 05:06:21 +0000 | [diff] [blame] | 4193 | case tok::annot_typename: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4194 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4195 | |
Chris Lattner | 7c186be | 2008-10-20 00:25:30 +0000 | [diff] [blame] | 4196 | // GNU ObjC bizarre protocol extension: <proto1,proto2> with implicit 'id'. |
| 4197 | case tok::less: |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 4198 | return getLangOpts().ObjC1; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4199 | |
Steve Naroff | 239f073 | 2008-12-25 14:16:32 +0000 | [diff] [blame] | 4200 | case tok::kw___cdecl: |
| 4201 | case tok::kw___stdcall: |
| 4202 | case tok::kw___fastcall: |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 4203 | case tok::kw___thiscall: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4204 | case tok::kw___vectorcall: |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 4205 | case tok::kw___w64: |
| 4206 | case tok::kw___ptr64: |
Francois Pichet | 58fd97a | 2011-08-25 00:36:46 +0000 | [diff] [blame] | 4207 | case tok::kw___ptr32: |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 4208 | case tok::kw___pascal: |
Francois Pichet | 3bd9aa4 | 2011-08-18 09:59:55 +0000 | [diff] [blame] | 4209 | case tok::kw___unaligned: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4210 | |
| 4211 | case tok::kw___private: |
| 4212 | case tok::kw___local: |
| 4213 | case tok::kw___global: |
| 4214 | case tok::kw___constant: |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4215 | case tok::kw___generic: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4216 | case tok::kw___read_only: |
| 4217 | case tok::kw___read_write: |
| 4218 | case tok::kw___write_only: |
| 4219 | |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 4220 | return true; |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4221 | |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 4222 | // C11 _Atomic |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 4223 | case tok::kw__Atomic: |
| 4224 | return true; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4225 | } |
| 4226 | } |
| 4227 | |
| 4228 | /// isDeclarationSpecifier() - Return true if the current token is part of a |
| 4229 | /// declaration specifier. |
Douglas Gregor | 9497a73 | 2010-09-16 01:51:54 +0000 | [diff] [blame] | 4230 | /// |
| 4231 | /// \param DisambiguatingWithExpression True to indicate that the purpose of |
| 4232 | /// this check is to disambiguate between an expression and a declaration. |
| 4233 | bool Parser::isDeclarationSpecifier(bool DisambiguatingWithExpression) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4234 | switch (Tok.getKind()) { |
| 4235 | default: return false; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4236 | |
Chris Lattner | 166a8fc | 2009-01-04 23:41:41 +0000 | [diff] [blame] | 4237 | case tok::identifier: // foo::bar |
Steve Naroff | 61f72cb | 2009-03-09 21:12:44 +0000 | [diff] [blame] | 4238 | // Unfortunate hack to support "Class.factoryMethod" notation. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 4239 | if (getLangOpts().ObjC1 && NextToken().is(tok::period)) |
Steve Naroff | 61f72cb | 2009-03-09 21:12:44 +0000 | [diff] [blame] | 4240 | return false; |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 4241 | if (TryAltiVecVectorToken()) |
| 4242 | return true; |
| 4243 | // Fall through. |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 4244 | case tok::kw_decltype: // decltype(T())::type |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 4245 | case tok::kw_typename: // typename T::type |
Chris Lattner | 166a8fc | 2009-01-04 23:41:41 +0000 | [diff] [blame] | 4246 | // Annotate typenames and C++ scope specifiers. If we get one, just |
| 4247 | // recurse to handle whatever we get. |
| 4248 | if (TryAnnotateTypeOrScopeToken()) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 4249 | return true; |
| 4250 | if (Tok.is(tok::identifier)) |
| 4251 | return false; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4252 | |
Douglas Gregor | 9497a73 | 2010-09-16 01:51:54 +0000 | [diff] [blame] | 4253 | // If we're in Objective-C and we have an Objective-C class type followed |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4254 | // by an identifier and then either ':' or ']', in a place where an |
Douglas Gregor | 9497a73 | 2010-09-16 01:51:54 +0000 | [diff] [blame] | 4255 | // expression is permitted, then this is probably a class message send |
| 4256 | // missing the initial '['. In this case, we won't consider this to be |
| 4257 | // the start of a declaration. |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4258 | if (DisambiguatingWithExpression && |
Douglas Gregor | 9497a73 | 2010-09-16 01:51:54 +0000 | [diff] [blame] | 4259 | isStartOfObjCClassMessageMissingOpenBracket()) |
| 4260 | return false; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4261 | |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 4262 | return isDeclarationSpecifier(); |
| 4263 | |
Chris Lattner | 166a8fc | 2009-01-04 23:41:41 +0000 | [diff] [blame] | 4264 | case tok::coloncolon: // ::foo::bar |
| 4265 | if (NextToken().is(tok::kw_new) || // ::new |
| 4266 | NextToken().is(tok::kw_delete)) // ::delete |
| 4267 | return false; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4268 | |
Chris Lattner | 166a8fc | 2009-01-04 23:41:41 +0000 | [diff] [blame] | 4269 | // Annotate typenames and C++ scope specifiers. If we get one, just |
| 4270 | // recurse to handle whatever we get. |
| 4271 | if (TryAnnotateTypeOrScopeToken()) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 4272 | return true; |
| 4273 | return isDeclarationSpecifier(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4274 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4275 | // storage-class-specifier |
| 4276 | case tok::kw_typedef: |
| 4277 | case tok::kw_extern: |
Steve Naroff | 8d54bf2 | 2007-12-18 00:16:02 +0000 | [diff] [blame] | 4278 | case tok::kw___private_extern__: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4279 | case tok::kw_static: |
| 4280 | case tok::kw_auto: |
| 4281 | case tok::kw_register: |
| 4282 | case tok::kw___thread: |
Richard Smith | ec64244 | 2013-04-12 22:46:28 +0000 | [diff] [blame] | 4283 | case tok::kw_thread_local: |
| 4284 | case tok::kw__Thread_local: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4285 | |
Douglas Gregor | 8d267c5 | 2011-09-09 02:06:17 +0000 | [diff] [blame] | 4286 | // Modules |
| 4287 | case tok::kw___module_private__: |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4288 | |
John McCall | b8a8de3 | 2012-11-14 00:49:39 +0000 | [diff] [blame] | 4289 | // Debugger support |
| 4290 | case tok::kw___unknown_anytype: |
| 4291 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4292 | // type-specifiers |
| 4293 | case tok::kw_short: |
| 4294 | case tok::kw_long: |
Francois Pichet | 338d7f7 | 2011-04-28 01:59:37 +0000 | [diff] [blame] | 4295 | case tok::kw___int64: |
Richard Smith | 5a5a971 | 2012-04-04 06:24:32 +0000 | [diff] [blame] | 4296 | case tok::kw___int128: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4297 | case tok::kw_signed: |
| 4298 | case tok::kw_unsigned: |
| 4299 | case tok::kw__Complex: |
| 4300 | case tok::kw__Imaginary: |
| 4301 | case tok::kw_void: |
| 4302 | case tok::kw_char: |
Argyrios Kyrtzidis | 64c438a | 2008-08-09 16:51:54 +0000 | [diff] [blame] | 4303 | case tok::kw_wchar_t: |
Alisdair Meredith | f5c209d | 2009-07-14 06:30:34 +0000 | [diff] [blame] | 4304 | case tok::kw_char16_t: |
| 4305 | case tok::kw_char32_t: |
| 4306 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4307 | case tok::kw_int: |
Anton Korobeynikov | aa4a99b | 2011-10-14 23:23:15 +0000 | [diff] [blame] | 4308 | case tok::kw_half: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4309 | case tok::kw_float: |
| 4310 | case tok::kw_double: |
Chris Lattner | 9298d96 | 2007-11-15 05:25:19 +0000 | [diff] [blame] | 4311 | case tok::kw_bool: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4312 | case tok::kw__Bool: |
| 4313 | case tok::kw__Decimal32: |
| 4314 | case tok::kw__Decimal64: |
| 4315 | case tok::kw__Decimal128: |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 4316 | case tok::kw___vector: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4317 | |
Chris Lattner | 99dc914 | 2008-04-13 18:59:07 +0000 | [diff] [blame] | 4318 | // struct-or-union-specifier (C99) or class-specifier (C++) |
| 4319 | case tok::kw_class: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4320 | case tok::kw_struct: |
| 4321 | case tok::kw_union: |
Joao Matos | 6666ed4 | 2012-08-31 18:45:21 +0000 | [diff] [blame] | 4322 | case tok::kw___interface: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4323 | // enum-specifier |
| 4324 | case tok::kw_enum: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4325 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4326 | // type-qualifier |
| 4327 | case tok::kw_const: |
| 4328 | case tok::kw_volatile: |
| 4329 | case tok::kw_restrict: |
Steve Naroff | d1861fd | 2007-07-31 12:34:36 +0000 | [diff] [blame] | 4330 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4331 | // function-specifier |
| 4332 | case tok::kw_inline: |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 4333 | case tok::kw_virtual: |
| 4334 | case tok::kw_explicit: |
Richard Smith | de03c15 | 2013-01-17 22:16:11 +0000 | [diff] [blame] | 4335 | case tok::kw__Noreturn: |
Chris Lattner | d6c7c18 | 2007-08-09 16:40:21 +0000 | [diff] [blame] | 4336 | |
Richard Smith | 4cd81c5 | 2013-01-29 09:02:09 +0000 | [diff] [blame] | 4337 | // alignment-specifier |
| 4338 | case tok::kw__Alignas: |
| 4339 | |
Richard Smith | 53aec2a | 2012-10-25 00:00:53 +0000 | [diff] [blame] | 4340 | // friend keyword. |
| 4341 | case tok::kw_friend: |
| 4342 | |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 4343 | // static_assert-declaration |
| 4344 | case tok::kw__Static_assert: |
| 4345 | |
Chris Lattner | 1ef0876 | 2007-08-09 17:01:07 +0000 | [diff] [blame] | 4346 | // GNU typeof support. |
| 4347 | case tok::kw_typeof: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4348 | |
Chris Lattner | 1ef0876 | 2007-08-09 17:01:07 +0000 | [diff] [blame] | 4349 | // GNU attributes. |
Chris Lattner | d6c7c18 | 2007-08-09 16:40:21 +0000 | [diff] [blame] | 4350 | case tok::kw___attribute: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4351 | |
Richard Smith | 53aec2a | 2012-10-25 00:00:53 +0000 | [diff] [blame] | 4352 | // C++11 decltype and constexpr. |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 4353 | case tok::annot_decltype: |
Richard Smith | 53aec2a | 2012-10-25 00:00:53 +0000 | [diff] [blame] | 4354 | case tok::kw_constexpr: |
Francois Pichet | e3d49b4 | 2011-06-19 08:02:06 +0000 | [diff] [blame] | 4355 | |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 4356 | // C11 _Atomic |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 4357 | case tok::kw__Atomic: |
| 4358 | return true; |
| 4359 | |
Chris Lattner | f3948c4 | 2008-07-26 03:38:44 +0000 | [diff] [blame] | 4360 | // GNU ObjC bizarre protocol extension: <proto1,proto2> with implicit 'id'. |
| 4361 | case tok::less: |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 4362 | return getLangOpts().ObjC1; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4363 | |
Douglas Gregor | d9d75e5 | 2011-04-27 05:41:15 +0000 | [diff] [blame] | 4364 | // typedef-name |
| 4365 | case tok::annot_typename: |
| 4366 | return !DisambiguatingWithExpression || |
| 4367 | !isStartOfObjCClassMessageMissingOpenBracket(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4368 | |
Steve Naroff | 47f5209 | 2009-01-06 19:34:12 +0000 | [diff] [blame] | 4369 | case tok::kw___declspec: |
Steve Naroff | 239f073 | 2008-12-25 14:16:32 +0000 | [diff] [blame] | 4370 | case tok::kw___cdecl: |
| 4371 | case tok::kw___stdcall: |
| 4372 | case tok::kw___fastcall: |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 4373 | case tok::kw___thiscall: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4374 | case tok::kw___vectorcall: |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 4375 | case tok::kw___w64: |
Aaron Ballman | aa9df09 | 2013-05-22 23:25:32 +0000 | [diff] [blame] | 4376 | case tok::kw___sptr: |
| 4377 | case tok::kw___uptr: |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 4378 | case tok::kw___ptr64: |
Francois Pichet | 58fd97a | 2011-08-25 00:36:46 +0000 | [diff] [blame] | 4379 | case tok::kw___ptr32: |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 4380 | case tok::kw___forceinline: |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 4381 | case tok::kw___pascal: |
Francois Pichet | 3bd9aa4 | 2011-08-18 09:59:55 +0000 | [diff] [blame] | 4382 | case tok::kw___unaligned: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4383 | |
| 4384 | case tok::kw___private: |
| 4385 | case tok::kw___local: |
| 4386 | case tok::kw___global: |
| 4387 | case tok::kw___constant: |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4388 | case tok::kw___generic: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4389 | case tok::kw___read_only: |
| 4390 | case tok::kw___read_write: |
| 4391 | case tok::kw___write_only: |
| 4392 | |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 4393 | return true; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4394 | } |
| 4395 | } |
| 4396 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 4397 | bool Parser::isConstructorDeclarator(bool IsUnqualified) { |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4398 | TentativeParsingAction TPA(*this); |
| 4399 | |
| 4400 | // Parse the C++ scope specifier. |
| 4401 | CXXScopeSpec SS; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4402 | if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), |
Douglas Gregor | efaa93a | 2011-11-07 17:33:42 +0000 | [diff] [blame] | 4403 | /*EnteringContext=*/true)) { |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 4404 | TPA.Revert(); |
| 4405 | return false; |
| 4406 | } |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4407 | |
| 4408 | // Parse the constructor name. |
| 4409 | if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id)) { |
| 4410 | // We already know that we have a constructor name; just consume |
| 4411 | // the token. |
| 4412 | ConsumeToken(); |
| 4413 | } else { |
| 4414 | TPA.Revert(); |
| 4415 | return false; |
| 4416 | } |
| 4417 | |
Richard Smith | 2259286 | 2012-03-27 23:05:05 +0000 | [diff] [blame] | 4418 | // Current class name must be followed by a left parenthesis. |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4419 | if (Tok.isNot(tok::l_paren)) { |
| 4420 | TPA.Revert(); |
| 4421 | return false; |
| 4422 | } |
| 4423 | ConsumeParen(); |
| 4424 | |
Richard Smith | 2259286 | 2012-03-27 23:05:05 +0000 | [diff] [blame] | 4425 | // A right parenthesis, or ellipsis followed by a right parenthesis signals |
| 4426 | // that we have a constructor. |
| 4427 | if (Tok.is(tok::r_paren) || |
| 4428 | (Tok.is(tok::ellipsis) && NextToken().is(tok::r_paren))) { |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4429 | TPA.Revert(); |
| 4430 | return true; |
| 4431 | } |
| 4432 | |
Richard Smith | 9ec2891 | 2013-09-06 00:12:20 +0000 | [diff] [blame] | 4433 | // A C++11 attribute here signals that we have a constructor, and is an |
| 4434 | // attribute on the first constructor parameter. |
| 4435 | if (getLangOpts().CPlusPlus11 && |
| 4436 | isCXX11AttributeSpecifier(/*Disambiguate*/ false, |
| 4437 | /*OuterMightBeMessageSend*/ true)) { |
| 4438 | TPA.Revert(); |
| 4439 | return true; |
| 4440 | } |
| 4441 | |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4442 | // If we need to, enter the specified scope. |
| 4443 | DeclaratorScopeObj DeclScopeObj(*this, SS); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 4444 | if (SS.isSet() && Actions.ShouldEnterDeclaratorScope(getCurScope(), SS)) |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4445 | DeclScopeObj.EnterDeclaratorScope(); |
| 4446 | |
Francois Pichet | dfaa5fb | 2011-01-31 04:54:32 +0000 | [diff] [blame] | 4447 | // Optionally skip Microsoft attributes. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4448 | ParsedAttributes Attrs(AttrFactory); |
Francois Pichet | dfaa5fb | 2011-01-31 04:54:32 +0000 | [diff] [blame] | 4449 | MaybeParseMicrosoftAttributes(Attrs); |
| 4450 | |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4451 | // Check whether the next token(s) are part of a declaration |
| 4452 | // specifier, in which case we have the start of a parameter and, |
| 4453 | // therefore, we know that this is a constructor. |
Richard Smith | 412e0cc | 2012-03-27 00:56:56 +0000 | [diff] [blame] | 4454 | bool IsConstructor = false; |
| 4455 | if (isDeclarationSpecifier()) |
| 4456 | IsConstructor = true; |
| 4457 | else if (Tok.is(tok::identifier) || |
| 4458 | (Tok.is(tok::annot_cxxscope) && NextToken().is(tok::identifier))) { |
| 4459 | // We've seen "C ( X" or "C ( X::Y", but "X" / "X::Y" is not a type. |
| 4460 | // This might be a parenthesized member name, but is more likely to |
| 4461 | // be a constructor declaration with an invalid argument type. Keep |
| 4462 | // looking. |
| 4463 | if (Tok.is(tok::annot_cxxscope)) |
| 4464 | ConsumeToken(); |
| 4465 | ConsumeToken(); |
| 4466 | |
| 4467 | // If this is not a constructor, we must be parsing a declarator, |
Richard Smith | 5d8388c | 2012-03-27 01:42:32 +0000 | [diff] [blame] | 4468 | // which must have one of the following syntactic forms (see the |
| 4469 | // grammar extract at the start of ParseDirectDeclarator): |
Richard Smith | 412e0cc | 2012-03-27 00:56:56 +0000 | [diff] [blame] | 4470 | switch (Tok.getKind()) { |
| 4471 | case tok::l_paren: |
| 4472 | // C(X ( int)); |
| 4473 | case tok::l_square: |
| 4474 | // C(X [ 5]); |
| 4475 | // C(X [ [attribute]]); |
| 4476 | case tok::coloncolon: |
| 4477 | // C(X :: Y); |
| 4478 | // C(X :: *p); |
Richard Smith | 412e0cc | 2012-03-27 00:56:56 +0000 | [diff] [blame] | 4479 | // Assume this isn't a constructor, rather than assuming it's a |
| 4480 | // constructor with an unnamed parameter of an ill-formed type. |
| 4481 | break; |
| 4482 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 4483 | case tok::r_paren: |
| 4484 | // C(X ) |
| 4485 | if (NextToken().is(tok::colon) || NextToken().is(tok::kw_try)) { |
| 4486 | // Assume these were meant to be constructors: |
| 4487 | // C(X) : (the name of a bit-field cannot be parenthesized). |
| 4488 | // C(X) try (this is otherwise ill-formed). |
| 4489 | IsConstructor = true; |
| 4490 | } |
| 4491 | if (NextToken().is(tok::semi) || NextToken().is(tok::l_brace)) { |
| 4492 | // If we have a constructor name within the class definition, |
| 4493 | // assume these were meant to be constructors: |
| 4494 | // C(X) { |
| 4495 | // C(X) ; |
| 4496 | // ... because otherwise we would be declaring a non-static data |
| 4497 | // member that is ill-formed because it's of the same type as its |
| 4498 | // surrounding class. |
| 4499 | // |
| 4500 | // FIXME: We can actually do this whether or not the name is qualified, |
| 4501 | // because if it is qualified in this context it must be being used as |
| 4502 | // a constructor name. However, we do not implement that rule correctly |
| 4503 | // currently, so we're somewhat conservative here. |
| 4504 | IsConstructor = IsUnqualified; |
| 4505 | } |
| 4506 | break; |
| 4507 | |
Richard Smith | 412e0cc | 2012-03-27 00:56:56 +0000 | [diff] [blame] | 4508 | default: |
| 4509 | IsConstructor = true; |
| 4510 | break; |
| 4511 | } |
| 4512 | } |
| 4513 | |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4514 | TPA.Revert(); |
| 4515 | return IsConstructor; |
| 4516 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4517 | |
| 4518 | /// ParseTypeQualifierListOpt |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 4519 | /// type-qualifier-list: [C99 6.7.5] |
| 4520 | /// type-qualifier |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4521 | /// [vendor] attributes |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4522 | /// [ only if AttrReqs & AR_VendorAttributesParsed ] |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 4523 | /// type-qualifier-list type-qualifier |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4524 | /// [vendor] type-qualifier-list attributes |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4525 | /// [ only if AttrReqs & AR_VendorAttributesParsed ] |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 4526 | /// [C++0x] attribute-specifier[opt] is allowed before cv-qualifier-seq |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4527 | /// [ only if AttReqs & AR_CXX11AttributesParsed ] |
| 4528 | /// Note: vendor can be GNU, MS, etc and can be explicitly controlled via |
| 4529 | /// AttrRequirements bitmask values. |
| 4530 | void Parser::ParseTypeQualifierListOpt(DeclSpec &DS, unsigned AttrReqs, |
Bill Wendling | 7f3ec66 | 2013-11-26 04:10:07 +0000 | [diff] [blame] | 4531 | bool AtomicAllowed, |
| 4532 | bool IdentifierRequired) { |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4533 | if (getLangOpts().CPlusPlus11 && (AttrReqs & AR_CXX11AttributesParsed) && |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 4534 | isCXX11AttributeSpecifier()) { |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4535 | ParsedAttributesWithRange attrs(AttrFactory); |
Richard Smith | c56298d | 2012-04-10 03:25:07 +0000 | [diff] [blame] | 4536 | ParseCXX11Attributes(attrs); |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 4537 | DS.takeAttributesFrom(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 4538 | } |
Abramo Bagnara | 796aa44 | 2011-03-12 11:17:06 +0000 | [diff] [blame] | 4539 | |
| 4540 | SourceLocation EndLoc; |
| 4541 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4542 | while (1) { |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 4543 | bool isInvalid = false; |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 4544 | const char *PrevSpec = nullptr; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 4545 | unsigned DiagID = 0; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4546 | SourceLocation Loc = Tok.getLocation(); |
| 4547 | |
| 4548 | switch (Tok.getKind()) { |
Douglas Gregor | 1a480c4 | 2010-08-27 17:35:51 +0000 | [diff] [blame] | 4549 | case tok::code_completion: |
| 4550 | Actions.CodeCompleteTypeQualifiers(DS); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 4551 | return cutOffParsing(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4552 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4553 | case tok::kw_const: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 4554 | isInvalid = DS.SetTypeQual(DeclSpec::TQ_const , Loc, PrevSpec, DiagID, |
Richard Smith | d654f2d | 2012-10-17 23:31:46 +0000 | [diff] [blame] | 4555 | getLangOpts()); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4556 | break; |
| 4557 | case tok::kw_volatile: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 4558 | isInvalid = DS.SetTypeQual(DeclSpec::TQ_volatile, Loc, PrevSpec, DiagID, |
Richard Smith | d654f2d | 2012-10-17 23:31:46 +0000 | [diff] [blame] | 4559 | getLangOpts()); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4560 | break; |
| 4561 | case tok::kw_restrict: |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 4562 | isInvalid = DS.SetTypeQual(DeclSpec::TQ_restrict, Loc, PrevSpec, DiagID, |
Richard Smith | d654f2d | 2012-10-17 23:31:46 +0000 | [diff] [blame] | 4563 | getLangOpts()); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4564 | break; |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 4565 | case tok::kw__Atomic: |
| 4566 | if (!AtomicAllowed) |
| 4567 | goto DoneWithTypeQuals; |
| 4568 | isInvalid = DS.SetTypeQual(DeclSpec::TQ_atomic, Loc, PrevSpec, DiagID, |
| 4569 | getLangOpts()); |
| 4570 | break; |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4571 | |
| 4572 | // OpenCL qualifiers: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4573 | case tok::kw___private: |
| 4574 | case tok::kw___global: |
| 4575 | case tok::kw___local: |
| 4576 | case tok::kw___constant: |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4577 | case tok::kw___generic: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4578 | case tok::kw___read_only: |
| 4579 | case tok::kw___write_only: |
| 4580 | case tok::kw___read_write: |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 4581 | ParseOpenCLQualifiers(DS.getAttributes()); |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 4582 | break; |
| 4583 | |
Aaron Ballman | aa9df09 | 2013-05-22 23:25:32 +0000 | [diff] [blame] | 4584 | case tok::kw___uptr: |
Bill Wendling | 7f3ec66 | 2013-11-26 04:10:07 +0000 | [diff] [blame] | 4585 | // GNU libc headers in C mode use '__uptr' as an identifer which conflicts |
| 4586 | // with the MS modifier keyword. |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4587 | if ((AttrReqs & AR_DeclspecAttributesParsed) && !getLangOpts().CPlusPlus && |
Bill Wendling | 03e463e | 2013-12-16 02:32:55 +0000 | [diff] [blame] | 4588 | IdentifierRequired && DS.isEmpty() && NextToken().is(tok::semi)) { |
| 4589 | if (TryKeywordIdentFallback(false)) |
| 4590 | continue; |
Bill Wendling | 7f3ec66 | 2013-11-26 04:10:07 +0000 | [diff] [blame] | 4591 | } |
| 4592 | case tok::kw___sptr: |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 4593 | case tok::kw___w64: |
Steve Naroff | 86bc6cf | 2008-12-25 14:41:26 +0000 | [diff] [blame] | 4594 | case tok::kw___ptr64: |
Francois Pichet | 58fd97a | 2011-08-25 00:36:46 +0000 | [diff] [blame] | 4595 | case tok::kw___ptr32: |
Steve Naroff | 239f073 | 2008-12-25 14:16:32 +0000 | [diff] [blame] | 4596 | case tok::kw___cdecl: |
| 4597 | case tok::kw___stdcall: |
| 4598 | case tok::kw___fastcall: |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 4599 | case tok::kw___thiscall: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4600 | case tok::kw___vectorcall: |
Francois Pichet | 3bd9aa4 | 2011-08-18 09:59:55 +0000 | [diff] [blame] | 4601 | case tok::kw___unaligned: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4602 | if (AttrReqs & AR_DeclspecAttributesParsed) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 4603 | ParseMicrosoftTypeAttributes(DS.getAttributes()); |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 4604 | continue; |
| 4605 | } |
| 4606 | goto DoneWithTypeQuals; |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 4607 | case tok::kw___pascal: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4608 | if (AttrReqs & AR_VendorAttributesParsed) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 4609 | ParseBorlandTypeAttributes(DS.getAttributes()); |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 4610 | continue; |
| 4611 | } |
| 4612 | goto DoneWithTypeQuals; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4613 | case tok::kw___attribute: |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4614 | if (AttrReqs & AR_GNUAttributesParsedAndRejected) |
| 4615 | // When GNU attributes are expressly forbidden, diagnose their usage. |
| 4616 | Diag(Tok, diag::err_attributes_not_allowed); |
| 4617 | |
| 4618 | // Parse the attributes even if they are rejected to ensure that error |
| 4619 | // recovery is graceful. |
| 4620 | if (AttrReqs & AR_GNUAttributesParsed || |
| 4621 | AttrReqs & AR_GNUAttributesParsedAndRejected) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 4622 | ParseGNUAttributes(DS.getAttributes()); |
Chris Lattner | 5a69d1c | 2008-12-18 07:02:59 +0000 | [diff] [blame] | 4623 | continue; // do *not* consume the next token! |
| 4624 | } |
| 4625 | // otherwise, FALL THROUGH! |
| 4626 | default: |
Steve Naroff | 239f073 | 2008-12-25 14:16:32 +0000 | [diff] [blame] | 4627 | DoneWithTypeQuals: |
Chris Lattner | 5a69d1c | 2008-12-18 07:02:59 +0000 | [diff] [blame] | 4628 | // If this is not a type-qualifier token, we're done reading type |
| 4629 | // qualifiers. First verify that DeclSpec's are consistent. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 4630 | DS.Finish(Diags, PP, Actions.getASTContext().getPrintingPolicy()); |
Abramo Bagnara | 796aa44 | 2011-03-12 11:17:06 +0000 | [diff] [blame] | 4631 | if (EndLoc.isValid()) |
| 4632 | DS.SetRangeEnd(EndLoc); |
Chris Lattner | 5a69d1c | 2008-12-18 07:02:59 +0000 | [diff] [blame] | 4633 | return; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4634 | } |
Chris Lattner | a1fcbad | 2008-12-18 06:50:14 +0000 | [diff] [blame] | 4635 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4636 | // If the specifier combination wasn't legal, issue a diagnostic. |
| 4637 | if (isInvalid) { |
| 4638 | assert(PrevSpec && "Method did not return previous specifier!"); |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 4639 | Diag(Tok, DiagID) << PrevSpec; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4640 | } |
Abramo Bagnara | 796aa44 | 2011-03-12 11:17:06 +0000 | [diff] [blame] | 4641 | EndLoc = ConsumeToken(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4642 | } |
| 4643 | } |
| 4644 | |
| 4645 | |
| 4646 | /// ParseDeclarator - Parse and verify a newly-initialized declarator. |
| 4647 | /// |
| 4648 | void Parser::ParseDeclarator(Declarator &D) { |
| 4649 | /// This implements the 'declarator' production in the C grammar, then checks |
| 4650 | /// for well-formedness and issues diagnostics. |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 4651 | ParseDeclaratorInternal(D, &Parser::ParseDirectDeclarator); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4652 | } |
| 4653 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4654 | static bool isPtrOperatorToken(tok::TokenKind Kind, const LangOptions &Lang, |
| 4655 | unsigned TheContext) { |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 4656 | if (Kind == tok::star || Kind == tok::caret) |
| 4657 | return true; |
| 4658 | |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 4659 | if (!Lang.CPlusPlus) |
| 4660 | return false; |
| 4661 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4662 | if (Kind == tok::amp) |
| 4663 | return true; |
| 4664 | |
| 4665 | // We parse rvalue refs in C++03, because otherwise the errors are scary. |
| 4666 | // But we must not parse them in conversion-type-ids and new-type-ids, since |
| 4667 | // those can be legitimately followed by a && operator. |
| 4668 | // (The same thing can in theory happen after a trailing-return-type, but |
| 4669 | // since those are a C++11 feature, there is no rejects-valid issue there.) |
| 4670 | if (Kind == tok::ampamp) |
| 4671 | return Lang.CPlusPlus11 || (TheContext != Declarator::ConversionIdContext && |
| 4672 | TheContext != Declarator::CXXNewContext); |
| 4673 | |
| 4674 | return false; |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 4675 | } |
| 4676 | |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 4677 | /// ParseDeclaratorInternal - Parse a C or C++ declarator. The direct-declarator |
| 4678 | /// is parsed by the function passed to it. Pass null, and the direct-declarator |
| 4679 | /// isn't parsed at all, making this function effectively parse the C++ |
Douglas Gregor | 2f1bc52 | 2008-11-07 20:08:42 +0000 | [diff] [blame] | 4680 | /// ptr-operator production. |
| 4681 | /// |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 4682 | /// If the grammar of this construct is extended, matching changes must also be |
Richard Smith | 5d8388c | 2012-03-27 01:42:32 +0000 | [diff] [blame] | 4683 | /// made to TryParseDeclarator and MightBeDeclarator, and possibly to |
| 4684 | /// isConstructorDeclarator. |
Richard Smith | 0706df4 | 2011-10-19 21:33:05 +0000 | [diff] [blame] | 4685 | /// |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4686 | /// declarator: [C99 6.7.5] [C++ 8p4, dcl.decl] |
| 4687 | /// [C] pointer[opt] direct-declarator |
| 4688 | /// [C++] direct-declarator |
| 4689 | /// [C++] ptr-operator declarator |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4690 | /// |
| 4691 | /// pointer: [C99 6.7.5] |
| 4692 | /// '*' type-qualifier-list[opt] |
| 4693 | /// '*' type-qualifier-list[opt] pointer |
| 4694 | /// |
Douglas Gregor | 2f1bc52 | 2008-11-07 20:08:42 +0000 | [diff] [blame] | 4695 | /// ptr-operator: |
| 4696 | /// '*' cv-qualifier-seq[opt] |
| 4697 | /// '&' |
Sebastian Redl | 05532f2 | 2009-03-15 22:02:01 +0000 | [diff] [blame] | 4698 | /// [C++0x] '&&' |
Douglas Gregor | 2f1bc52 | 2008-11-07 20:08:42 +0000 | [diff] [blame] | 4699 | /// [GNU] '&' restrict[opt] attributes[opt] |
Sebastian Redl | 05532f2 | 2009-03-15 22:02:01 +0000 | [diff] [blame] | 4700 | /// [GNU?] '&&' restrict[opt] attributes[opt] |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4701 | /// '::'[opt] nested-name-specifier '*' cv-qualifier-seq[opt] |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 4702 | void Parser::ParseDeclaratorInternal(Declarator &D, |
| 4703 | DirectDeclParseFunction DirectDeclParser) { |
Douglas Gregor | 91a2886 | 2009-08-26 14:27:30 +0000 | [diff] [blame] | 4704 | if (Diags.hasAllExtensionsSilenced()) |
| 4705 | D.setExtension(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4706 | |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4707 | // C++ member pointers start with a '::' or a nested-name. |
| 4708 | // Member pointers get special handling, since there's no place for the |
| 4709 | // scope spec in the generic path below. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 4710 | if (getLangOpts().CPlusPlus && |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4711 | (Tok.is(tok::coloncolon) || |
| 4712 | (Tok.is(tok::identifier) && |
| 4713 | (NextToken().is(tok::coloncolon) || NextToken().is(tok::less))) || |
Chris Lattner | f919bfe | 2009-03-24 17:04:48 +0000 | [diff] [blame] | 4714 | Tok.is(tok::annot_cxxscope))) { |
Douglas Gregor | efaa93a | 2011-11-07 17:33:42 +0000 | [diff] [blame] | 4715 | bool EnteringContext = D.getContext() == Declarator::FileContext || |
| 4716 | D.getContext() == Declarator::MemberContext; |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4717 | CXXScopeSpec SS; |
Douglas Gregor | efaa93a | 2011-11-07 17:33:42 +0000 | [diff] [blame] | 4718 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 4719 | |
Jeffrey Yasskin | edc2877 | 2010-04-07 23:29:58 +0000 | [diff] [blame] | 4720 | if (SS.isNotEmpty()) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4721 | if (Tok.isNot(tok::star)) { |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4722 | // The scope spec really belongs to the direct-declarator. |
Richard Smith | 6a502c4 | 2013-01-08 22:43:49 +0000 | [diff] [blame] | 4723 | if (D.mayHaveIdentifier()) |
| 4724 | D.getCXXScopeSpec() = SS; |
| 4725 | else |
| 4726 | AnnotateScopeToken(SS, true); |
| 4727 | |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4728 | if (DirectDeclParser) |
| 4729 | (this->*DirectDeclParser)(D); |
| 4730 | return; |
| 4731 | } |
| 4732 | |
| 4733 | SourceLocation Loc = ConsumeToken(); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 4734 | D.SetRangeEnd(Loc); |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4735 | DeclSpec DS(AttrFactory); |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4736 | ParseTypeQualifierListOpt(DS); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 4737 | D.ExtendWithDeclSpec(DS); |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4738 | |
| 4739 | // Recurse to parse whatever is left. |
| 4740 | ParseDeclaratorInternal(D, DirectDeclParser); |
| 4741 | |
| 4742 | // Sema will have to catch (syntactically invalid) pointers into global |
| 4743 | // scope. It has to catch pointers into namespace scope anyway. |
| 4744 | D.AddTypeInfo(DeclaratorChunk::getMemberPointer(SS,DS.getTypeQualifiers(), |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4745 | DS.getLocEnd()), |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4746 | DS.getAttributes(), |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 4747 | /* Don't replace range end. */SourceLocation()); |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4748 | return; |
| 4749 | } |
| 4750 | } |
| 4751 | |
| 4752 | tok::TokenKind Kind = Tok.getKind(); |
Steve Naroff | 5618bd4 | 2008-08-27 16:04:49 +0000 | [diff] [blame] | 4753 | // Not a pointer, C++ reference, or block. |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4754 | if (!isPtrOperatorToken(Kind, getLangOpts(), D.getContext())) { |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 4755 | if (DirectDeclParser) |
| 4756 | (this->*DirectDeclParser)(D); |
Douglas Gregor | 2f1bc52 | 2008-11-07 20:08:42 +0000 | [diff] [blame] | 4757 | return; |
| 4758 | } |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4759 | |
Sebastian Redl | 05532f2 | 2009-03-15 22:02:01 +0000 | [diff] [blame] | 4760 | // Otherwise, '*' -> pointer, '^' -> block, '&' -> lvalue reference, |
| 4761 | // '&&' -> rvalue reference |
Sebastian Redl | 743de1f | 2009-03-23 00:00:23 +0000 | [diff] [blame] | 4762 | SourceLocation Loc = ConsumeToken(); // Eat the *, ^, & or &&. |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 4763 | D.SetRangeEnd(Loc); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4764 | |
Chris Lattner | 9af5500 | 2009-03-27 04:18:06 +0000 | [diff] [blame] | 4765 | if (Kind == tok::star || Kind == tok::caret) { |
Chris Lattner | 7654914 | 2008-02-21 01:32:26 +0000 | [diff] [blame] | 4766 | // Is a pointer. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4767 | DeclSpec DS(AttrFactory); |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4768 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4769 | // GNU attributes are not allowed here in a new-type-id, but Declspec and |
| 4770 | // C++11 attributes are allowed. |
| 4771 | unsigned Reqs = AR_CXX11AttributesParsed | AR_DeclspecAttributesParsed | |
| 4772 | ((D.getContext() != Declarator::CXXNewContext) |
| 4773 | ? AR_GNUAttributesParsed |
| 4774 | : AR_GNUAttributesParsedAndRejected); |
| 4775 | ParseTypeQualifierListOpt(DS, Reqs, true, !D.mayOmitIdentifier()); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 4776 | D.ExtendWithDeclSpec(DS); |
Sebastian Redl | f30208a | 2009-01-24 21:16:55 +0000 | [diff] [blame] | 4777 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4778 | // Recursively parse the declarator. |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 4779 | ParseDeclaratorInternal(D, DirectDeclParser); |
Steve Naroff | 5618bd4 | 2008-08-27 16:04:49 +0000 | [diff] [blame] | 4780 | if (Kind == tok::star) |
| 4781 | // Remember that we parsed a pointer type, and remember the type-quals. |
| 4782 | D.AddTypeInfo(DeclaratorChunk::getPointer(DS.getTypeQualifiers(), Loc, |
Chandler Carruth | d067c07 | 2011-02-23 18:51:59 +0000 | [diff] [blame] | 4783 | DS.getConstSpecLoc(), |
| 4784 | DS.getVolatileSpecLoc(), |
Pirama Arumuga Nainar | 33337ca | 2015-05-06 11:48:57 -0700 | [diff] [blame] | 4785 | DS.getRestrictSpecLoc(), |
| 4786 | DS.getAtomicSpecLoc()), |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4787 | DS.getAttributes(), |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 4788 | SourceLocation()); |
Steve Naroff | 5618bd4 | 2008-08-27 16:04:49 +0000 | [diff] [blame] | 4789 | else |
| 4790 | // Remember that we parsed a Block type, and remember the type-quals. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4791 | D.AddTypeInfo(DeclaratorChunk::getBlockPointer(DS.getTypeQualifiers(), |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4792 | Loc), |
| 4793 | DS.getAttributes(), |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 4794 | SourceLocation()); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4795 | } else { |
| 4796 | // Is a reference |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4797 | DeclSpec DS(AttrFactory); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4798 | |
Sebastian Redl | 743de1f | 2009-03-23 00:00:23 +0000 | [diff] [blame] | 4799 | // Complain about rvalue references in C++03, but then go on and build |
| 4800 | // the declarator. |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 4801 | if (Kind == tok::ampamp) |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 4802 | Diag(Loc, getLangOpts().CPlusPlus11 ? |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 4803 | diag::warn_cxx98_compat_rvalue_reference : |
| 4804 | diag::ext_rvalue_reference); |
Sebastian Redl | 743de1f | 2009-03-23 00:00:23 +0000 | [diff] [blame] | 4805 | |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 4806 | // GNU-style and C++11 attributes are allowed here, as is restrict. |
| 4807 | ParseTypeQualifierListOpt(DS); |
| 4808 | D.ExtendWithDeclSpec(DS); |
| 4809 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4810 | // C++ 8.3.2p1: cv-qualified references are ill-formed except when the |
| 4811 | // cv-qualifiers are introduced through the use of a typedef or of a |
| 4812 | // template type argument, in which case the cv-qualifiers are ignored. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4813 | if (DS.getTypeQualifiers() != DeclSpec::TQ_unspecified) { |
| 4814 | if (DS.getTypeQualifiers() & DeclSpec::TQ_const) |
| 4815 | Diag(DS.getConstSpecLoc(), |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 4816 | diag::err_invalid_reference_qualifier_application) << "const"; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4817 | if (DS.getTypeQualifiers() & DeclSpec::TQ_volatile) |
| 4818 | Diag(DS.getVolatileSpecLoc(), |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 4819 | diag::err_invalid_reference_qualifier_application) << "volatile"; |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 4820 | // 'restrict' is permitted as an extension. |
| 4821 | if (DS.getTypeQualifiers() & DeclSpec::TQ_atomic) |
| 4822 | Diag(DS.getAtomicSpecLoc(), |
| 4823 | diag::err_invalid_reference_qualifier_application) << "_Atomic"; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4824 | } |
| 4825 | |
| 4826 | // Recursively parse the declarator. |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 4827 | ParseDeclaratorInternal(D, DirectDeclParser); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4828 | |
Douglas Gregor | f1f9b4e | 2008-11-03 15:51:28 +0000 | [diff] [blame] | 4829 | if (D.getNumTypeObjects() > 0) { |
| 4830 | // C++ [dcl.ref]p4: There shall be no references to references. |
| 4831 | DeclaratorChunk& InnerChunk = D.getTypeObject(D.getNumTypeObjects() - 1); |
| 4832 | if (InnerChunk.Kind == DeclaratorChunk::Reference) { |
Chris Lattner | da83bac | 2008-11-19 07:37:42 +0000 | [diff] [blame] | 4833 | if (const IdentifierInfo *II = D.getIdentifier()) |
| 4834 | Diag(InnerChunk.Loc, diag::err_illegal_decl_reference_to_reference) |
| 4835 | << II; |
| 4836 | else |
| 4837 | Diag(InnerChunk.Loc, diag::err_illegal_decl_reference_to_reference) |
| 4838 | << "type name"; |
Douglas Gregor | f1f9b4e | 2008-11-03 15:51:28 +0000 | [diff] [blame] | 4839 | |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 4840 | // Once we've complained about the reference-to-reference, we |
Douglas Gregor | f1f9b4e | 2008-11-03 15:51:28 +0000 | [diff] [blame] | 4841 | // can go ahead and build the (technically ill-formed) |
| 4842 | // declarator: reference collapsing will take care of it. |
| 4843 | } |
| 4844 | } |
| 4845 | |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 4846 | // Remember that we parsed a reference type. |
Chris Lattner | 7654914 | 2008-02-21 01:32:26 +0000 | [diff] [blame] | 4847 | D.AddTypeInfo(DeclaratorChunk::getReference(DS.getTypeQualifiers(), Loc, |
Sebastian Redl | 05532f2 | 2009-03-15 22:02:01 +0000 | [diff] [blame] | 4848 | Kind == tok::amp), |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 4849 | DS.getAttributes(), |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 4850 | SourceLocation()); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4851 | } |
| 4852 | } |
| 4853 | |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 4854 | // When correcting from misplaced brackets before the identifier, the location |
| 4855 | // is saved inside the declarator so that other diagnostic messages can use |
| 4856 | // them. This extracts and returns that location, or returns the provided |
| 4857 | // location if a stored location does not exist. |
| 4858 | static SourceLocation getMissingDeclaratorIdLoc(Declarator &D, |
| 4859 | SourceLocation Loc) { |
| 4860 | if (D.getName().StartLocation.isInvalid() && |
| 4861 | D.getName().EndLocation.isValid()) |
| 4862 | return D.getName().EndLocation; |
| 4863 | |
| 4864 | return Loc; |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 4865 | } |
| 4866 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4867 | /// ParseDirectDeclarator |
| 4868 | /// direct-declarator: [C99 6.7.5] |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 4869 | /// [C99] identifier |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4870 | /// '(' declarator ')' |
| 4871 | /// [GNU] '(' attributes declarator ')' |
| 4872 | /// [C90] direct-declarator '[' constant-expression[opt] ']' |
| 4873 | /// [C99] direct-declarator '[' type-qual-list[opt] assignment-expr[opt] ']' |
| 4874 | /// [C99] direct-declarator '[' 'static' type-qual-list[opt] assign-expr ']' |
| 4875 | /// [C99] direct-declarator '[' type-qual-list 'static' assignment-expr ']' |
| 4876 | /// [C99] direct-declarator '[' type-qual-list[opt] '*' ']' |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 4877 | /// [C++11] direct-declarator '[' constant-expression[opt] ']' |
| 4878 | /// attribute-specifier-seq[opt] |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4879 | /// direct-declarator '(' parameter-type-list ')' |
| 4880 | /// direct-declarator '(' identifier-list[opt] ')' |
| 4881 | /// [GNU] direct-declarator '(' parameter-forward-declarations |
| 4882 | /// parameter-type-list[opt] ')' |
Argyrios Kyrtzidis | 971c4fa | 2008-10-24 21:46:40 +0000 | [diff] [blame] | 4883 | /// [C++] direct-declarator '(' parameter-declaration-clause ')' |
| 4884 | /// cv-qualifier-seq[opt] exception-specification[opt] |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 4885 | /// [C++11] direct-declarator '(' parameter-declaration-clause ')' |
| 4886 | /// attribute-specifier-seq[opt] cv-qualifier-seq[opt] |
| 4887 | /// ref-qualifier[opt] exception-specification[opt] |
Douglas Gregor | b48fe38 | 2008-10-31 09:07:45 +0000 | [diff] [blame] | 4888 | /// [C++] declarator-id |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 4889 | /// [C++11] declarator-id attribute-specifier-seq[opt] |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 4890 | /// |
| 4891 | /// declarator-id: [C++ 8] |
Douglas Gregor | a8bc8c9 | 2010-12-23 22:44:42 +0000 | [diff] [blame] | 4892 | /// '...'[opt] id-expression |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 4893 | /// '::'[opt] nested-name-specifier[opt] type-name |
| 4894 | /// |
| 4895 | /// id-expression: [C++ 5.1] |
| 4896 | /// unqualified-id |
Douglas Gregor | db422df | 2009-09-25 21:45:23 +0000 | [diff] [blame] | 4897 | /// qualified-id |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 4898 | /// |
| 4899 | /// unqualified-id: [C++ 5.1] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4900 | /// identifier |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 4901 | /// operator-function-id |
Douglas Gregor | db422df | 2009-09-25 21:45:23 +0000 | [diff] [blame] | 4902 | /// conversion-function-id |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4903 | /// '~' class-name |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 4904 | /// template-id |
Argyrios Kyrtzidis | c7ed9c6 | 2008-11-07 22:02:30 +0000 | [diff] [blame] | 4905 | /// |
Richard Smith | 5d8388c | 2012-03-27 01:42:32 +0000 | [diff] [blame] | 4906 | /// Note, any additional constructs added here may need corresponding changes |
| 4907 | /// in isConstructorDeclarator. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 4908 | void Parser::ParseDirectDeclarator(Declarator &D) { |
Argyrios Kyrtzidis | 314fe78 | 2008-11-26 22:40:03 +0000 | [diff] [blame] | 4909 | DeclaratorScopeObj DeclScopeObj(*this, D.getCXXScopeSpec()); |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 4910 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 4911 | if (getLangOpts().CPlusPlus && D.mayHaveIdentifier()) { |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4912 | // Don't parse FOO:BAR as if it were a typo for FOO::BAR inside a class, in |
| 4913 | // this context it is a bitfield. Also in range-based for statement colon |
| 4914 | // may delimit for-range-declaration. |
| 4915 | ColonProtectionRAIIObject X(*this, |
| 4916 | D.getContext() == Declarator::MemberContext || |
| 4917 | (D.getContext() == Declarator::ForContext && |
| 4918 | getLangOpts().CPlusPlus11)); |
| 4919 | |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 4920 | // ParseDeclaratorInternal might already have parsed the scope. |
Jeffrey Yasskin | 9ab1454 | 2010-04-08 16:38:48 +0000 | [diff] [blame] | 4921 | if (D.getCXXScopeSpec().isEmpty()) { |
Douglas Gregor | efaa93a | 2011-11-07 17:33:42 +0000 | [diff] [blame] | 4922 | bool EnteringContext = D.getContext() == Declarator::FileContext || |
| 4923 | D.getContext() == Declarator::MemberContext; |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4924 | ParseOptionalCXXScopeSpecifier(D.getCXXScopeSpec(), ParsedType(), |
Douglas Gregor | efaa93a | 2011-11-07 17:33:42 +0000 | [diff] [blame] | 4925 | EnteringContext); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 4926 | } |
| 4927 | |
Jeffrey Yasskin | 9ab1454 | 2010-04-08 16:38:48 +0000 | [diff] [blame] | 4928 | if (D.getCXXScopeSpec().isValid()) { |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4929 | if (Actions.ShouldEnterDeclaratorScope(getCurScope(), |
| 4930 | D.getCXXScopeSpec())) |
John McCall | e7e278b | 2009-12-11 20:04:54 +0000 | [diff] [blame] | 4931 | // Change the declaration context for name lookup, until this function |
| 4932 | // is exited (and the declarator has been parsed). |
| 4933 | DeclScopeObj.EnterDeclaratorScope(); |
Jeffrey Yasskin | 9ab1454 | 2010-04-08 16:38:48 +0000 | [diff] [blame] | 4934 | } |
| 4935 | |
Douglas Gregor | a8bc8c9 | 2010-12-23 22:44:42 +0000 | [diff] [blame] | 4936 | // C++0x [dcl.fct]p14: |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4937 | // There is a syntactic ambiguity when an ellipsis occurs at the end of a |
| 4938 | // parameter-declaration-clause without a preceding comma. In this case, |
| 4939 | // the ellipsis is parsed as part of the abstract-declarator if the type |
| 4940 | // of the parameter either names a template parameter pack that has not |
| 4941 | // been expanded or contains auto; otherwise, it is parsed as part of the |
| 4942 | // parameter-declaration-clause. |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 4943 | if (Tok.is(tok::ellipsis) && D.getCXXScopeSpec().isEmpty() && |
Douglas Gregor | a8bc8c9 | 2010-12-23 22:44:42 +0000 | [diff] [blame] | 4944 | !((D.getContext() == Declarator::PrototypeContext || |
Faisal Vali | fad9e13 | 2013-09-26 19:54:12 +0000 | [diff] [blame] | 4945 | D.getContext() == Declarator::LambdaExprParameterContext || |
Douglas Gregor | a8bc8c9 | 2010-12-23 22:44:42 +0000 | [diff] [blame] | 4946 | D.getContext() == Declarator::BlockLiteralContext) && |
Douglas Gregor | a8bc8c9 | 2010-12-23 22:44:42 +0000 | [diff] [blame] | 4947 | NextToken().is(tok::r_paren) && |
Richard Smith | 30f2a74 | 2013-02-20 20:19:27 +0000 | [diff] [blame] | 4948 | !D.hasGroupingParens() && |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4949 | !Actions.containsUnexpandedParameterPacks(D) && |
| 4950 | D.getDeclSpec().getTypeSpecType() != TST_auto)) { |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 4951 | SourceLocation EllipsisLoc = ConsumeToken(); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 4952 | if (isPtrOperatorToken(Tok.getKind(), getLangOpts(), D.getContext())) { |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 4953 | // The ellipsis was put in the wrong place. Recover, and explain to |
| 4954 | // the user what they should have done. |
| 4955 | ParseDeclarator(D); |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 4956 | if (EllipsisLoc.isValid()) |
| 4957 | DiagnoseMisplacedEllipsisInDeclarator(EllipsisLoc, D); |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 4958 | return; |
| 4959 | } else |
| 4960 | D.setEllipsisLoc(EllipsisLoc); |
| 4961 | |
| 4962 | // The ellipsis can't be followed by a parenthesized declarator. We |
| 4963 | // check for that in ParseParenDeclarator, after we have disambiguated |
| 4964 | // the l_paren token. |
| 4965 | } |
| 4966 | |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 4967 | if (Tok.is(tok::identifier) || Tok.is(tok::kw_operator) || |
| 4968 | Tok.is(tok::annot_template_id) || Tok.is(tok::tilde)) { |
| 4969 | // We found something that indicates the start of an unqualified-id. |
| 4970 | // Parse that unqualified-id. |
John McCall | ba9d853 | 2010-04-13 06:39:49 +0000 | [diff] [blame] | 4971 | bool AllowConstructorName; |
| 4972 | if (D.getDeclSpec().hasTypeSpecifier()) |
| 4973 | AllowConstructorName = false; |
| 4974 | else if (D.getCXXScopeSpec().isSet()) |
| 4975 | AllowConstructorName = |
| 4976 | (D.getContext() == Declarator::FileContext || |
Dmitri Gribenko | 1b9e8f7 | 2013-02-12 17:27:41 +0000 | [diff] [blame] | 4977 | D.getContext() == Declarator::MemberContext); |
John McCall | ba9d853 | 2010-04-13 06:39:49 +0000 | [diff] [blame] | 4978 | else |
| 4979 | AllowConstructorName = (D.getContext() == Declarator::MemberContext); |
| 4980 | |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 4981 | SourceLocation TemplateKWLoc; |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4982 | bool HadScope = D.getCXXScopeSpec().isValid(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 4983 | if (ParseUnqualifiedId(D.getCXXScopeSpec(), |
| 4984 | /*EnteringContext=*/true, |
| 4985 | /*AllowDestructorName=*/true, |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 4986 | AllowConstructorName, |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 4987 | ParsedType(), |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 4988 | TemplateKWLoc, |
Jeffrey Yasskin | 9ab1454 | 2010-04-08 16:38:48 +0000 | [diff] [blame] | 4989 | D.getName()) || |
| 4990 | // Once we're past the identifier, if the scope was bad, mark the |
| 4991 | // whole declarator bad. |
| 4992 | D.getCXXScopeSpec().isInvalid()) { |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 4993 | D.SetIdentifier(nullptr, Tok.getLocation()); |
Argyrios Kyrtzidis | 314fe78 | 2008-11-26 22:40:03 +0000 | [diff] [blame] | 4994 | D.setInvalidType(true); |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 4995 | } else { |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 4996 | // ParseUnqualifiedId might have parsed a scope specifier during error |
| 4997 | // recovery. If it did so, enter that scope. |
| 4998 | if (!HadScope && D.getCXXScopeSpec().isValid() && |
| 4999 | Actions.ShouldEnterDeclaratorScope(getCurScope(), |
| 5000 | D.getCXXScopeSpec())) |
| 5001 | DeclScopeObj.EnterDeclaratorScope(); |
| 5002 | |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 5003 | // Parsed the unqualified-id; update range information and move along. |
| 5004 | if (D.getSourceRange().getBegin().isInvalid()) |
| 5005 | D.SetRangeBegin(D.getName().getSourceRange().getBegin()); |
| 5006 | D.SetRangeEnd(D.getName().getSourceRange().getEnd()); |
Douglas Gregor | 2f1bc52 | 2008-11-07 20:08:42 +0000 | [diff] [blame] | 5007 | } |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 5008 | goto PastIdentifier; |
Douglas Gregor | 1cd1b1e | 2008-11-06 22:13:31 +0000 | [diff] [blame] | 5009 | } |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 5010 | } else if (Tok.is(tok::identifier) && D.mayHaveIdentifier()) { |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 5011 | assert(!getLangOpts().CPlusPlus && |
Argyrios Kyrtzidis | 314fe78 | 2008-11-26 22:40:03 +0000 | [diff] [blame] | 5012 | "There's a C++-specific check for tok::identifier above"); |
| 5013 | assert(Tok.getIdentifierInfo() && "Not an identifier?"); |
| 5014 | D.SetIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5015 | D.SetRangeEnd(Tok.getLocation()); |
Argyrios Kyrtzidis | 314fe78 | 2008-11-26 22:40:03 +0000 | [diff] [blame] | 5016 | ConsumeToken(); |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 5017 | goto PastIdentifier; |
Richard Smith | a38253c | 2013-07-11 05:10:21 +0000 | [diff] [blame] | 5018 | } else if (Tok.is(tok::identifier) && D.diagnoseIdentifier()) { |
Richard Smith | 8d1ab8a | 2013-10-13 22:12:28 +0000 | [diff] [blame] | 5019 | // A virt-specifier isn't treated as an identifier if it appears after a |
| 5020 | // trailing-return-type. |
| 5021 | if (D.getContext() != Declarator::TrailingReturnContext || |
| 5022 | !isCXX11VirtSpecifier(Tok)) { |
| 5023 | Diag(Tok.getLocation(), diag::err_unexpected_unqualified_id) |
| 5024 | << FixItHint::CreateRemoval(Tok.getLocation()); |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5025 | D.SetIdentifier(nullptr, Tok.getLocation()); |
Richard Smith | 8d1ab8a | 2013-10-13 22:12:28 +0000 | [diff] [blame] | 5026 | ConsumeToken(); |
| 5027 | goto PastIdentifier; |
| 5028 | } |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 5029 | } |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 5030 | |
Douglas Gregor | 3f9a056 | 2009-11-03 01:35:08 +0000 | [diff] [blame] | 5031 | if (Tok.is(tok::l_paren)) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5032 | // direct-declarator: '(' declarator ')' |
| 5033 | // direct-declarator: '(' attributes declarator ')' |
| 5034 | // Example: 'char (*X)' or 'int (*XX)(void)' |
| 5035 | ParseParenDeclarator(D); |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 5036 | |
| 5037 | // If the declarator was parenthesized, we entered the declarator |
| 5038 | // scope when parsing the parenthesized declarator, then exited |
| 5039 | // the scope already. Re-enter the scope, if we need to. |
| 5040 | if (D.getCXXScopeSpec().isSet()) { |
Fariborz Jahanian | 46877cd | 2010-08-17 23:50:37 +0000 | [diff] [blame] | 5041 | // If there was an error parsing parenthesized declarator, declarator |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 5042 | // scope may have been entered before. Don't do it again. |
Fariborz Jahanian | 46877cd | 2010-08-17 23:50:37 +0000 | [diff] [blame] | 5043 | if (!D.isInvalidType() && |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 5044 | Actions.ShouldEnterDeclaratorScope(getCurScope(), |
| 5045 | D.getCXXScopeSpec())) |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 5046 | // Change the declaration context for name lookup, until this function |
| 5047 | // is exited (and the declarator has been parsed). |
Fariborz Jahanian | 46877cd | 2010-08-17 23:50:37 +0000 | [diff] [blame] | 5048 | DeclScopeObj.EnterDeclaratorScope(); |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 5049 | } |
Argyrios Kyrtzidis | 314fe78 | 2008-11-26 22:40:03 +0000 | [diff] [blame] | 5050 | } else if (D.mayOmitIdentifier()) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5051 | // This could be something simple like "int" (in which case the declarator |
| 5052 | // portion is empty), if an abstract-declarator is allowed. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5053 | D.SetIdentifier(nullptr, Tok.getLocation()); |
Richard Smith | 30f2a74 | 2013-02-20 20:19:27 +0000 | [diff] [blame] | 5054 | |
| 5055 | // The grammar for abstract-pack-declarator does not allow grouping parens. |
| 5056 | // FIXME: Revisit this once core issue 1488 is resolved. |
| 5057 | if (D.hasEllipsis() && D.hasGroupingParens()) |
| 5058 | Diag(PP.getLocForEndOfToken(D.getEllipsisLoc()), |
| 5059 | diag::ext_abstract_pack_declarator_parens); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5060 | } else { |
David Blaikie | e75d9cf | 2012-06-29 22:03:56 +0000 | [diff] [blame] | 5061 | if (Tok.getKind() == tok::annot_pragma_parser_crash) |
David Blaikie | 377da4c | 2012-08-21 18:56:49 +0000 | [diff] [blame] | 5062 | LLVM_BUILTIN_TRAP; |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5063 | if (Tok.is(tok::l_square)) |
| 5064 | return ParseMisplacedBracketDeclarator(D); |
| 5065 | if (D.getContext() == Declarator::MemberContext) { |
| 5066 | Diag(getMissingDeclaratorIdLoc(D, Tok.getLocation()), |
| 5067 | diag::err_expected_member_name_or_semi) |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5068 | << (D.getDeclSpec().isEmpty() ? SourceRange() |
| 5069 | : D.getDeclSpec().getSourceRange()); |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5070 | } else if (getLangOpts().CPlusPlus) { |
Richard Trieu | db55c04c | 2013-01-26 02:31:38 +0000 | [diff] [blame] | 5071 | if (Tok.is(tok::period) || Tok.is(tok::arrow)) |
| 5072 | Diag(Tok, diag::err_invalid_operator_on_type) << Tok.is(tok::arrow); |
Richard Trieu | efb288c | 2013-09-05 02:31:33 +0000 | [diff] [blame] | 5073 | else { |
| 5074 | SourceLocation Loc = D.getCXXScopeSpec().getEndLoc(); |
| 5075 | if (Tok.isAtStartOfLine() && Loc.isValid()) |
| 5076 | Diag(PP.getLocForEndOfToken(Loc), diag::err_expected_unqualified_id) |
| 5077 | << getLangOpts().CPlusPlus; |
| 5078 | else |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5079 | Diag(getMissingDeclaratorIdLoc(D, Tok.getLocation()), |
| 5080 | diag::err_expected_unqualified_id) |
Richard Trieu | efb288c | 2013-09-05 02:31:33 +0000 | [diff] [blame] | 5081 | << getLangOpts().CPlusPlus; |
| 5082 | } |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5083 | } else { |
| 5084 | Diag(getMissingDeclaratorIdLoc(D, Tok.getLocation()), |
| 5085 | diag::err_expected_either) |
| 5086 | << tok::identifier << tok::l_paren; |
| 5087 | } |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5088 | D.SetIdentifier(nullptr, Tok.getLocation()); |
Chris Lattner | 1f6f54b | 2008-11-11 06:13:16 +0000 | [diff] [blame] | 5089 | D.setInvalidType(true); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5090 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5091 | |
Argyrios Kyrtzidis | 314fe78 | 2008-11-26 22:40:03 +0000 | [diff] [blame] | 5092 | PastIdentifier: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5093 | assert(D.isPastIdentifier() && |
| 5094 | "Haven't past the location of the identifier yet?"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5095 | |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5096 | // Don't parse attributes unless we have parsed an unparenthesized name. |
| 5097 | if (D.hasName() && !D.getNumTypeObjects()) |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 5098 | MaybeParseCXX11Attributes(D); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 5099 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5100 | while (1) { |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 5101 | if (Tok.is(tok::l_paren)) { |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 5102 | // Enter function-declaration scope, limiting any declarators to the |
| 5103 | // function prototype scope, including parameter declarators. |
| 5104 | ParseScope PrototypeScope(this, |
Richard Smith | 3a2b7a1 | 2013-01-28 22:42:45 +0000 | [diff] [blame] | 5105 | Scope::FunctionPrototypeScope|Scope::DeclScope| |
| 5106 | (D.isFunctionDeclaratorAFunctionDeclaration() |
| 5107 | ? Scope::FunctionDeclarationScope : 0)); |
| 5108 | |
Argyrios Kyrtzidis | 73a0d88 | 2008-10-06 17:10:33 +0000 | [diff] [blame] | 5109 | // The paren may be part of a C++ direct initializer, eg. "int x(1);". |
| 5110 | // In such a case, check if we actually have a function declarator; if it |
| 5111 | // is not, the declarator has been fully parsed. |
Richard Smith | b9c6261 | 2012-07-30 21:30:52 +0000 | [diff] [blame] | 5112 | bool IsAmbiguous = false; |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 5113 | if (getLangOpts().CPlusPlus && D.mayBeFollowedByCXXDirectInit()) { |
| 5114 | // The name of the declarator, if any, is tentatively declared within |
| 5115 | // a possible direct initializer. |
| 5116 | TentativelyDeclaredIdentifiers.push_back(D.getIdentifier()); |
| 5117 | bool IsFunctionDecl = isCXXFunctionDeclarator(&IsAmbiguous); |
| 5118 | TentativelyDeclaredIdentifiers.pop_back(); |
| 5119 | if (!IsFunctionDecl) |
| 5120 | break; |
| 5121 | } |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 5122 | ParsedAttributes attrs(AttrFactory); |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5123 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 5124 | T.consumeOpen(); |
Richard Smith | b9c6261 | 2012-07-30 21:30:52 +0000 | [diff] [blame] | 5125 | ParseFunctionDeclarator(D, attrs, T, IsAmbiguous); |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 5126 | PrototypeScope.Exit(); |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 5127 | } else if (Tok.is(tok::l_square)) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5128 | ParseBracketDeclarator(D); |
| 5129 | } else { |
| 5130 | break; |
| 5131 | } |
| 5132 | } |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 5133 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5134 | |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5135 | /// ParseParenDeclarator - We parsed the declarator D up to a paren. This is |
| 5136 | /// only called before the identifier, so these are most likely just grouping |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5137 | /// parens for precedence. If we find that these are actually function |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5138 | /// parameter parens in an abstract-declarator, we call ParseFunctionDeclarator. |
| 5139 | /// |
| 5140 | /// direct-declarator: |
| 5141 | /// '(' declarator ')' |
| 5142 | /// [GNU] '(' attributes declarator ')' |
Chris Lattner | 7399ee0 | 2008-10-20 02:05:46 +0000 | [diff] [blame] | 5143 | /// direct-declarator '(' parameter-type-list ')' |
| 5144 | /// direct-declarator '(' identifier-list[opt] ')' |
| 5145 | /// [GNU] direct-declarator '(' parameter-forward-declarations |
| 5146 | /// parameter-type-list[opt] ')' |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5147 | /// |
| 5148 | void Parser::ParseParenDeclarator(Declarator &D) { |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5149 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 5150 | T.consumeOpen(); |
| 5151 | |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5152 | assert(!D.isPastIdentifier() && "Should be called before passing identifier"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5153 | |
Chris Lattner | 7399ee0 | 2008-10-20 02:05:46 +0000 | [diff] [blame] | 5154 | // Eat any attributes before we look at whether this is a grouping or function |
| 5155 | // declarator paren. If this is a grouping paren, the attribute applies to |
| 5156 | // the type being built up, for example: |
| 5157 | // int (__attribute__(()) *x)(long y) |
| 5158 | // If this ends up not being a grouping paren, the attribute applies to the |
| 5159 | // first argument, for example: |
| 5160 | // int (__attribute__(()) int x) |
| 5161 | // In either case, we need to eat any attributes to be able to determine what |
| 5162 | // sort of paren this is. |
| 5163 | // |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 5164 | ParsedAttributes attrs(AttrFactory); |
Chris Lattner | 7399ee0 | 2008-10-20 02:05:46 +0000 | [diff] [blame] | 5165 | bool RequiresArg = false; |
| 5166 | if (Tok.is(tok::kw___attribute)) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 5167 | ParseGNUAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5168 | |
Chris Lattner | 7399ee0 | 2008-10-20 02:05:46 +0000 | [diff] [blame] | 5169 | // We require that the argument list (if this is a non-grouping paren) be |
| 5170 | // present even if the attribute list was empty. |
| 5171 | RequiresArg = true; |
| 5172 | } |
Chad Rosier | 9cab1c9 | 2012-12-21 21:22:20 +0000 | [diff] [blame] | 5173 | |
Steve Naroff | 239f073 | 2008-12-25 14:16:32 +0000 | [diff] [blame] | 5174 | // Eat any Microsoft extensions. |
Chad Rosier | 9cab1c9 | 2012-12-21 21:22:20 +0000 | [diff] [blame] | 5175 | ParseMicrosoftTypeAttributes(attrs); |
| 5176 | |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 5177 | // Eat any Borland extensions. |
Ted Kremenek | 8113ecf | 2010-11-10 05:59:39 +0000 | [diff] [blame] | 5178 | if (Tok.is(tok::kw___pascal)) |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 5179 | ParseBorlandTypeAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5180 | |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5181 | // If we haven't past the identifier yet (or where the identifier would be |
| 5182 | // stored, if this is an abstract declarator), then this is probably just |
| 5183 | // grouping parens. However, if this could be an abstract-declarator, then |
| 5184 | // this could also be the start of function arguments (consider 'void()'). |
| 5185 | bool isGrouping; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5186 | |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5187 | if (!D.mayOmitIdentifier()) { |
| 5188 | // If this can't be an abstract-declarator, this *must* be a grouping |
| 5189 | // paren, because we haven't seen the identifier yet. |
| 5190 | isGrouping = true; |
| 5191 | } else if (Tok.is(tok::r_paren) || // 'int()' is a function. |
Richard Smith | 2259286 | 2012-03-27 23:05:05 +0000 | [diff] [blame] | 5192 | (getLangOpts().CPlusPlus && Tok.is(tok::ellipsis) && |
| 5193 | NextToken().is(tok::r_paren)) || // C++ int(...) |
Richard Smith | 6ce48a7 | 2012-04-11 04:01:28 +0000 | [diff] [blame] | 5194 | isDeclarationSpecifier() || // 'int(int)' is a function. |
| 5195 | isCXX11AttributeSpecifier()) { // 'int([[]]int)' is a function. |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5196 | // This handles C99 6.7.5.3p11: in "typedef int X; void foo(X)", X is |
| 5197 | // considered to be a type, not a K&R identifier-list. |
| 5198 | isGrouping = false; |
| 5199 | } else { |
| 5200 | // Otherwise, this is a grouping paren, e.g. 'int (*X)' or 'int(X)'. |
| 5201 | isGrouping = true; |
| 5202 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5203 | |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5204 | // If this is a grouping paren, handle: |
| 5205 | // direct-declarator: '(' declarator ')' |
| 5206 | // direct-declarator: '(' attributes declarator ')' |
| 5207 | if (isGrouping) { |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 5208 | SourceLocation EllipsisLoc = D.getEllipsisLoc(); |
| 5209 | D.setEllipsisLoc(SourceLocation()); |
| 5210 | |
Argyrios Kyrtzidis | 3f2a8a0 | 2008-10-07 10:21:57 +0000 | [diff] [blame] | 5211 | bool hadGroupingParens = D.hasGroupingParens(); |
Argyrios Kyrtzidis | 73a0d88 | 2008-10-06 17:10:33 +0000 | [diff] [blame] | 5212 | D.setGroupingParens(true); |
Sebastian Redl | 4c5d320 | 2008-11-21 19:14:01 +0000 | [diff] [blame] | 5213 | ParseDeclaratorInternal(D, &Parser::ParseDirectDeclarator); |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5214 | // Match the ')'. |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5215 | T.consumeClose(); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 5216 | D.AddTypeInfo(DeclaratorChunk::getParen(T.getOpenLocation(), |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5217 | T.getCloseLocation()), |
| 5218 | attrs, T.getCloseLocation()); |
Argyrios Kyrtzidis | 3f2a8a0 | 2008-10-07 10:21:57 +0000 | [diff] [blame] | 5219 | |
| 5220 | D.setGroupingParens(hadGroupingParens); |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 5221 | |
| 5222 | // An ellipsis cannot be placed outside parentheses. |
| 5223 | if (EllipsisLoc.isValid()) |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5224 | DiagnoseMisplacedEllipsisInDeclarator(EllipsisLoc, D); |
Richard Smith | 9988f28 | 2012-03-29 01:16:42 +0000 | [diff] [blame] | 5225 | |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5226 | return; |
| 5227 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5228 | |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5229 | // Okay, if this wasn't a grouping paren, it must be the start of a function |
| 5230 | // argument list. Recognize that this declarator will never have an |
Chris Lattner | 7399ee0 | 2008-10-20 02:05:46 +0000 | [diff] [blame] | 5231 | // identifier (and remember where it would have been), then call into |
| 5232 | // ParseFunctionDeclarator to handle of argument list. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5233 | D.SetIdentifier(nullptr, Tok.getLocation()); |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5234 | |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 5235 | // Enter function-declaration scope, limiting any declarators to the |
| 5236 | // function prototype scope, including parameter declarators. |
| 5237 | ParseScope PrototypeScope(this, |
Richard Smith | 3a2b7a1 | 2013-01-28 22:42:45 +0000 | [diff] [blame] | 5238 | Scope::FunctionPrototypeScope | Scope::DeclScope | |
| 5239 | (D.isFunctionDeclaratorAFunctionDeclaration() |
| 5240 | ? Scope::FunctionDeclarationScope : 0)); |
Richard Smith | b9c6261 | 2012-07-30 21:30:52 +0000 | [diff] [blame] | 5241 | ParseFunctionDeclarator(D, attrs, T, false, RequiresArg); |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 5242 | PrototypeScope.Exit(); |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5243 | } |
| 5244 | |
| 5245 | /// ParseFunctionDeclarator - We are after the identifier and have parsed the |
| 5246 | /// declarator D up to a paren, which indicates that we are parsing function |
| 5247 | /// arguments. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5248 | /// |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5249 | /// If FirstArgAttrs is non-null, then the caller parsed those arguments |
| 5250 | /// immediately after the open paren - they should be considered to be the |
| 5251 | /// first argument of a parameter. |
Chris Lattner | 7399ee0 | 2008-10-20 02:05:46 +0000 | [diff] [blame] | 5252 | /// |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5253 | /// If RequiresArg is true, then the first argument of the function is required |
| 5254 | /// to be present and required to not be an identifier list. |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5255 | /// |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5256 | /// For C++, after the parameter-list, it also parses the cv-qualifier-seq[opt], |
| 5257 | /// (C++11) ref-qualifier[opt], exception-specification[opt], |
| 5258 | /// (C++11) attribute-specifier-seq[opt], and (C++11) trailing-return-type[opt]. |
| 5259 | /// |
| 5260 | /// [C++11] exception-specification: |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5261 | /// dynamic-exception-specification |
| 5262 | /// noexcept-specification |
| 5263 | /// |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5264 | void Parser::ParseFunctionDeclarator(Declarator &D, |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5265 | ParsedAttributes &FirstArgAttrs, |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5266 | BalancedDelimiterTracker &Tracker, |
Richard Smith | b9c6261 | 2012-07-30 21:30:52 +0000 | [diff] [blame] | 5267 | bool IsAmbiguous, |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5268 | bool RequiresArg) { |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 5269 | assert(getCurScope()->isFunctionPrototypeScope() && |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 5270 | "Should call from a Function scope"); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5271 | // lparen is already consumed! |
| 5272 | assert(D.isPastIdentifier() && "Should not call before identifier!"); |
| 5273 | |
| 5274 | // This should be true when the function has typed arguments. |
| 5275 | // Otherwise, it is treated as a K&R-style function. |
| 5276 | bool HasProto = false; |
| 5277 | // Build up an array of information about the parsed arguments. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 5278 | SmallVector<DeclaratorChunk::ParamInfo, 16> ParamInfo; |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5279 | // Remember where we see an ellipsis, if any. |
| 5280 | SourceLocation EllipsisLoc; |
| 5281 | |
| 5282 | DeclSpec DS(AttrFactory); |
| 5283 | bool RefQualifierIsLValueRef = true; |
| 5284 | SourceLocation RefQualifierLoc; |
Douglas Gregor | 43f5103 | 2011-10-19 06:04:55 +0000 | [diff] [blame] | 5285 | SourceLocation ConstQualifierLoc; |
| 5286 | SourceLocation VolatileQualifierLoc; |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5287 | SourceLocation RestrictQualifierLoc; |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5288 | ExceptionSpecificationType ESpecType = EST_None; |
| 5289 | SourceRange ESpecRange; |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 5290 | SmallVector<ParsedType, 2> DynamicExceptions; |
| 5291 | SmallVector<SourceRange, 2> DynamicExceptionRanges; |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5292 | ExprResult NoexceptExpr; |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5293 | CachedTokens *ExceptionSpecTokens = 0; |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5294 | ParsedAttributes FnAttrs(AttrFactory); |
Richard Smith | 54655be | 2012-06-12 01:51:59 +0000 | [diff] [blame] | 5295 | TypeResult TrailingReturnType; |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5296 | |
Abramo Bagnara | ac8ea05 | 2012-10-15 21:05:46 +0000 | [diff] [blame] | 5297 | /* LocalEndLoc is the end location for the local FunctionTypeLoc. |
| 5298 | EndLoc is the end location for the function declarator. |
| 5299 | They differ for trailing return types. */ |
| 5300 | SourceLocation StartLoc, LocalEndLoc, EndLoc; |
Abramo Bagnara | 59c0a81 | 2012-10-04 21:42:10 +0000 | [diff] [blame] | 5301 | SourceLocation LParenLoc, RParenLoc; |
| 5302 | LParenLoc = Tracker.getOpenLocation(); |
| 5303 | StartLoc = LParenLoc; |
| 5304 | |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5305 | if (isFunctionDeclaratorIdentifierList()) { |
| 5306 | if (RequiresArg) |
| 5307 | Diag(Tok, diag::err_argument_required_after_attribute); |
| 5308 | |
| 5309 | ParseFunctionDeclaratorIdentifierList(D, ParamInfo); |
| 5310 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5311 | Tracker.consumeClose(); |
Abramo Bagnara | 59c0a81 | 2012-10-04 21:42:10 +0000 | [diff] [blame] | 5312 | RParenLoc = Tracker.getCloseLocation(); |
Abramo Bagnara | ac8ea05 | 2012-10-15 21:05:46 +0000 | [diff] [blame] | 5313 | LocalEndLoc = RParenLoc; |
Abramo Bagnara | 59c0a81 | 2012-10-04 21:42:10 +0000 | [diff] [blame] | 5314 | EndLoc = RParenLoc; |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5315 | } else { |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5316 | if (Tok.isNot(tok::r_paren)) |
Faisal Vali | fad9e13 | 2013-09-26 19:54:12 +0000 | [diff] [blame] | 5317 | ParseParameterDeclarationClause(D, FirstArgAttrs, ParamInfo, |
| 5318 | EllipsisLoc); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5319 | else if (RequiresArg) |
| 5320 | Diag(Tok, diag::err_argument_required_after_attribute); |
| 5321 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 5322 | HasProto = ParamInfo.size() || getLangOpts().CPlusPlus; |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5323 | |
| 5324 | // If we have the closing ')', eat it. |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5325 | Tracker.consumeClose(); |
Abramo Bagnara | 59c0a81 | 2012-10-04 21:42:10 +0000 | [diff] [blame] | 5326 | RParenLoc = Tracker.getCloseLocation(); |
Abramo Bagnara | ac8ea05 | 2012-10-15 21:05:46 +0000 | [diff] [blame] | 5327 | LocalEndLoc = RParenLoc; |
Abramo Bagnara | 59c0a81 | 2012-10-04 21:42:10 +0000 | [diff] [blame] | 5328 | EndLoc = RParenLoc; |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5329 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 5330 | if (getLangOpts().CPlusPlus) { |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5331 | // FIXME: Accept these components in any order, and produce fixits to |
| 5332 | // correct the order if the user gets it wrong. Ideally we should deal |
Pirama Arumuga Nainar | 3ea9e33 | 2015-04-08 08:57:32 -0700 | [diff] [blame] | 5333 | // with the pure-specifier in the same way. |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5334 | |
| 5335 | // Parse cv-qualifier-seq[opt]. |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5336 | ParseTypeQualifierListOpt(DS, AR_NoAttributesParsed, |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 5337 | /*AtomicAllowed*/ false); |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5338 | if (!DS.getSourceRange().getEnd().isInvalid()) { |
| 5339 | EndLoc = DS.getSourceRange().getEnd(); |
| 5340 | ConstQualifierLoc = DS.getConstSpecLoc(); |
| 5341 | VolatileQualifierLoc = DS.getVolatileSpecLoc(); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5342 | RestrictQualifierLoc = DS.getRestrictSpecLoc(); |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5343 | } |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5344 | |
| 5345 | // Parse ref-qualifier[opt]. |
Pirama Arumuga Nainar | 3ea9e33 | 2015-04-08 08:57:32 -0700 | [diff] [blame] | 5346 | if (ParseRefQualifier(RefQualifierIsLValueRef, RefQualifierLoc)) |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5347 | EndLoc = RefQualifierLoc; |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5348 | |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 5349 | // C++11 [expr.prim.general]p3: |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 5350 | // If a declaration declares a member function or member function |
| 5351 | // template of a class X, the expression this is a prvalue of type |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 5352 | // "pointer to cv-qualifier-seq X" between the optional cv-qualifer-seq |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 5353 | // and the end of the function-definition, member-declarator, or |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 5354 | // declarator. |
Richard Smith | d922779 | 2013-03-15 00:41:52 +0000 | [diff] [blame] | 5355 | // FIXME: currently, "static" case isn't handled correctly. |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 5356 | bool IsCXX11MemberFunction = |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 5357 | getLangOpts().CPlusPlus11 && |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5358 | D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && |
Richard Smith | d922779 | 2013-03-15 00:41:52 +0000 | [diff] [blame] | 5359 | (D.getContext() == Declarator::MemberContext |
| 5360 | ? !D.getDeclSpec().isFriendSpecified() |
| 5361 | : D.getContext() == Declarator::FileContext && |
| 5362 | D.getCXXScopeSpec().isValid() && |
| 5363 | Actions.CurContext->isRecord()); |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 5364 | Sema::CXXThisScopeRAII ThisScope(Actions, |
| 5365 | dyn_cast<CXXRecordDecl>(Actions.CurContext), |
Richard Smith | 7b19cb1 | 2013-01-14 01:55:13 +0000 | [diff] [blame] | 5366 | DS.getTypeQualifiers() | |
Richard Smith | 8404626 | 2013-04-21 01:08:50 +0000 | [diff] [blame] | 5367 | (D.getDeclSpec().isConstexprSpecified() && |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5368 | !getLangOpts().CPlusPlus14 |
Richard Smith | 7b19cb1 | 2013-01-14 01:55:13 +0000 | [diff] [blame] | 5369 | ? Qualifiers::Const : 0), |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 5370 | IsCXX11MemberFunction); |
Richard Smith | a058fd4 | 2012-05-02 22:22:32 +0000 | [diff] [blame] | 5371 | |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5372 | // Parse exception-specification[opt]. |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5373 | bool Delayed = D.isFirstDeclarationOfMember() && |
| 5374 | D.isFunctionDeclaratorAFunctionDeclaration(); |
| 5375 | if (Delayed && Actions.isLibstdcxxEagerExceptionSpecHack(D) && |
| 5376 | GetLookAheadToken(0).is(tok::kw_noexcept) && |
| 5377 | GetLookAheadToken(1).is(tok::l_paren) && |
| 5378 | GetLookAheadToken(2).is(tok::kw_noexcept) && |
| 5379 | GetLookAheadToken(3).is(tok::l_paren) && |
| 5380 | GetLookAheadToken(4).is(tok::identifier) && |
| 5381 | GetLookAheadToken(4).getIdentifierInfo()->isStr("swap")) { |
| 5382 | // HACK: We've got an exception-specification |
| 5383 | // noexcept(noexcept(swap(...))) |
| 5384 | // or |
| 5385 | // noexcept(noexcept(swap(...)) && noexcept(swap(...))) |
| 5386 | // on a 'swap' member function. This is a libstdc++ bug; the lookup |
| 5387 | // for 'swap' will only find the function we're currently declaring, |
| 5388 | // whereas it expects to find a non-member swap through ADL. Turn off |
| 5389 | // delayed parsing to give it a chance to find what it expects. |
| 5390 | Delayed = false; |
| 5391 | } |
| 5392 | ESpecType = tryParseExceptionSpecification(Delayed, |
| 5393 | ESpecRange, |
Douglas Gregor | 74e2fc3 | 2012-04-16 18:27:27 +0000 | [diff] [blame] | 5394 | DynamicExceptions, |
| 5395 | DynamicExceptionRanges, |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5396 | NoexceptExpr, |
| 5397 | ExceptionSpecTokens); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5398 | if (ESpecType != EST_None) |
| 5399 | EndLoc = ESpecRange.getEnd(); |
| 5400 | |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5401 | // Parse attribute-specifier-seq[opt]. Per DR 979 and DR 1297, this goes |
| 5402 | // after the exception-specification. |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 5403 | MaybeParseCXX11Attributes(FnAttrs); |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5404 | |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5405 | // Parse trailing-return-type[opt]. |
Abramo Bagnara | ac8ea05 | 2012-10-15 21:05:46 +0000 | [diff] [blame] | 5406 | LocalEndLoc = EndLoc; |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 5407 | if (getLangOpts().CPlusPlus11 && Tok.is(tok::arrow)) { |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 5408 | Diag(Tok, diag::warn_cxx98_compat_trailing_return_type); |
Abramo Bagnara | 59c0a81 | 2012-10-04 21:42:10 +0000 | [diff] [blame] | 5409 | if (D.getDeclSpec().getTypeSpecType() == TST_auto) |
| 5410 | StartLoc = D.getDeclSpec().getTypeSpecTypeLoc(); |
Abramo Bagnara | ac8ea05 | 2012-10-15 21:05:46 +0000 | [diff] [blame] | 5411 | LocalEndLoc = Tok.getLocation(); |
Douglas Gregor | ae7902c | 2011-08-04 15:30:47 +0000 | [diff] [blame] | 5412 | SourceRange Range; |
Richard Smith | 54655be | 2012-06-12 01:51:59 +0000 | [diff] [blame] | 5413 | TrailingReturnType = ParseTrailingReturnType(Range); |
Abramo Bagnara | ac8ea05 | 2012-10-15 21:05:46 +0000 | [diff] [blame] | 5414 | EndLoc = Range.getEnd(); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5415 | } |
| 5416 | } |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5417 | } |
| 5418 | |
| 5419 | // Remember that we parsed a function type, and remember the attributes. |
| 5420 | D.AddTypeInfo(DeclaratorChunk::getFunction(HasProto, |
Abramo Bagnara | 59c0a81 | 2012-10-04 21:42:10 +0000 | [diff] [blame] | 5421 | IsAmbiguous, |
| 5422 | LParenLoc, |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5423 | ParamInfo.data(), ParamInfo.size(), |
Abramo Bagnara | 59c0a81 | 2012-10-04 21:42:10 +0000 | [diff] [blame] | 5424 | EllipsisLoc, RParenLoc, |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5425 | DS.getTypeQualifiers(), |
| 5426 | RefQualifierIsLValueRef, |
Douglas Gregor | 43f5103 | 2011-10-19 06:04:55 +0000 | [diff] [blame] | 5427 | RefQualifierLoc, ConstQualifierLoc, |
| 5428 | VolatileQualifierLoc, |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5429 | RestrictQualifierLoc, |
Douglas Gregor | 90ebed0 | 2011-07-13 21:47:47 +0000 | [diff] [blame] | 5430 | /*MutableLoc=*/SourceLocation(), |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5431 | ESpecType, ESpecRange.getBegin(), |
| 5432 | DynamicExceptions.data(), |
| 5433 | DynamicExceptionRanges.data(), |
| 5434 | DynamicExceptions.size(), |
| 5435 | NoexceptExpr.isUsable() ? |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5436 | NoexceptExpr.get() : nullptr, |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5437 | ExceptionSpecTokens, |
Abramo Bagnara | ac8ea05 | 2012-10-15 21:05:46 +0000 | [diff] [blame] | 5438 | StartLoc, LocalEndLoc, D, |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5439 | TrailingReturnType), |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5440 | FnAttrs, EndLoc); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5441 | } |
| 5442 | |
Pirama Arumuga Nainar | 3ea9e33 | 2015-04-08 08:57:32 -0700 | [diff] [blame] | 5443 | /// ParseRefQualifier - Parses a member function ref-qualifier. Returns |
| 5444 | /// true if a ref-qualifier is found. |
| 5445 | bool Parser::ParseRefQualifier(bool &RefQualifierIsLValueRef, |
| 5446 | SourceLocation &RefQualifierLoc) { |
| 5447 | if (Tok.is(tok::amp) || Tok.is(tok::ampamp)) { |
| 5448 | Diag(Tok, getLangOpts().CPlusPlus11 ? |
| 5449 | diag::warn_cxx98_compat_ref_qualifier : |
| 5450 | diag::ext_ref_qualifier); |
| 5451 | |
| 5452 | RefQualifierIsLValueRef = Tok.is(tok::amp); |
| 5453 | RefQualifierLoc = ConsumeToken(); |
| 5454 | return true; |
| 5455 | } |
| 5456 | return false; |
| 5457 | } |
| 5458 | |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5459 | /// isFunctionDeclaratorIdentifierList - This parameter list may have an |
| 5460 | /// identifier list form for a K&R-style function: void foo(a,b,c) |
| 5461 | /// |
| 5462 | /// Note that identifier-lists are only allowed for normal declarators, not for |
| 5463 | /// abstract-declarators. |
| 5464 | bool Parser::isFunctionDeclaratorIdentifierList() { |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 5465 | return !getLangOpts().CPlusPlus |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5466 | && Tok.is(tok::identifier) |
| 5467 | && !TryAltiVecVectorToken() |
| 5468 | // K&R identifier lists can't have typedefs as identifiers, per C99 |
| 5469 | // 6.7.5.3p11. |
| 5470 | && (TryAnnotateTypeOrScopeToken() || !Tok.is(tok::annot_typename)) |
| 5471 | // Identifier lists follow a really simple grammar: the identifiers can |
| 5472 | // be followed *only* by a ", identifier" or ")". However, K&R |
| 5473 | // identifier lists are really rare in the brave new modern world, and |
| 5474 | // it is very common for someone to typo a type in a non-K&R style |
| 5475 | // list. If we are presented with something like: "void foo(intptr x, |
| 5476 | // float y)", we don't want to start parsing the function declarator as |
| 5477 | // though it is a K&R style declarator just because intptr is an |
| 5478 | // invalid type. |
| 5479 | // |
| 5480 | // To handle this, we check to see if the token after the first |
| 5481 | // identifier is a "," or ")". Only then do we parse it as an |
| 5482 | // identifier list. |
| 5483 | && (NextToken().is(tok::comma) || NextToken().is(tok::r_paren)); |
| 5484 | } |
| 5485 | |
| 5486 | /// ParseFunctionDeclaratorIdentifierList - While parsing a function declarator |
| 5487 | /// we found a K&R-style identifier list instead of a typed parameter list. |
| 5488 | /// |
| 5489 | /// After returning, ParamInfo will hold the parsed parameters. |
| 5490 | /// |
| 5491 | /// identifier-list: [C99 6.7.5] |
| 5492 | /// identifier |
| 5493 | /// identifier-list ',' identifier |
| 5494 | /// |
| 5495 | void Parser::ParseFunctionDeclaratorIdentifierList( |
| 5496 | Declarator &D, |
Craig Topper | 6b9240e | 2013-07-05 19:34:19 +0000 | [diff] [blame] | 5497 | SmallVectorImpl<DeclaratorChunk::ParamInfo> &ParamInfo) { |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5498 | // If there was no identifier specified for the declarator, either we are in |
| 5499 | // an abstract-declarator, or we are in a parameter declarator which was found |
| 5500 | // to be abstract. In abstract-declarators, identifier lists are not valid: |
| 5501 | // diagnose this. |
| 5502 | if (!D.getIdentifier()) |
| 5503 | Diag(Tok, diag::ext_ident_list_in_param); |
| 5504 | |
| 5505 | // Maintain an efficient lookup of params we have seen so far. |
| 5506 | llvm::SmallSet<const IdentifierInfo*, 16> ParamsSoFar; |
| 5507 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5508 | do { |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5509 | // If this isn't an identifier, report the error and skip until ')'. |
| 5510 | if (Tok.isNot(tok::identifier)) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5511 | Diag(Tok, diag::err_expected) << tok::identifier; |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 5512 | SkipUntil(tok::r_paren, StopAtSemi | StopBeforeMatch); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5513 | // Forget we parsed anything. |
| 5514 | ParamInfo.clear(); |
| 5515 | return; |
| 5516 | } |
| 5517 | |
| 5518 | IdentifierInfo *ParmII = Tok.getIdentifierInfo(); |
| 5519 | |
| 5520 | // Reject 'typedef int y; int test(x, y)', but continue parsing. |
| 5521 | if (Actions.getTypeName(*ParmII, Tok.getLocation(), getCurScope())) |
| 5522 | Diag(Tok, diag::err_unexpected_typedef_ident) << ParmII; |
| 5523 | |
| 5524 | // Verify that the argument identifier has not already been mentioned. |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5525 | if (!ParamsSoFar.insert(ParmII).second) { |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5526 | Diag(Tok, diag::err_param_redefinition) << ParmII; |
| 5527 | } else { |
| 5528 | // Remember this identifier in ParamInfo. |
| 5529 | ParamInfo.push_back(DeclaratorChunk::ParamInfo(ParmII, |
| 5530 | Tok.getLocation(), |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5531 | nullptr)); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5532 | } |
| 5533 | |
| 5534 | // Eat the identifier. |
| 5535 | ConsumeToken(); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5536 | // The list continues if we see a comma. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5537 | } while (TryConsumeToken(tok::comma)); |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5538 | } |
| 5539 | |
| 5540 | /// ParseParameterDeclarationClause - Parse a (possibly empty) parameter-list |
| 5541 | /// after the opening parenthesis. This function will not parse a K&R-style |
| 5542 | /// identifier list. |
| 5543 | /// |
Richard Smith | 6ce48a7 | 2012-04-11 04:01:28 +0000 | [diff] [blame] | 5544 | /// D is the declarator being parsed. If FirstArgAttrs is non-null, then the |
| 5545 | /// caller parsed those arguments immediately after the open paren - they should |
| 5546 | /// be considered to be part of the first parameter. |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5547 | /// |
| 5548 | /// After returning, ParamInfo will hold the parsed parameters. EllipsisLoc will |
| 5549 | /// be the location of the ellipsis, if any was parsed. |
| 5550 | /// |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5551 | /// parameter-type-list: [C99 6.7.5] |
| 5552 | /// parameter-list |
| 5553 | /// parameter-list ',' '...' |
Douglas Gregor | ed5d651 | 2009-09-22 21:41:40 +0000 | [diff] [blame] | 5554 | /// [C++] parameter-list '...' |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5555 | /// |
| 5556 | /// parameter-list: [C99 6.7.5] |
| 5557 | /// parameter-declaration |
| 5558 | /// parameter-list ',' parameter-declaration |
| 5559 | /// |
| 5560 | /// parameter-declaration: [C99 6.7.5] |
| 5561 | /// declaration-specifiers declarator |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 5562 | /// [C++] declaration-specifiers declarator '=' assignment-expression |
Sebastian Redl | 84407ba | 2012-03-14 15:54:00 +0000 | [diff] [blame] | 5563 | /// [C++11] initializer-clause |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5564 | /// [GNU] declaration-specifiers declarator attributes |
Sebastian Redl | 50de12f | 2009-03-24 22:27:57 +0000 | [diff] [blame] | 5565 | /// declaration-specifiers abstract-declarator[opt] |
| 5566 | /// [C++] declaration-specifiers abstract-declarator[opt] |
Chris Lattner | 8123a95 | 2008-04-10 02:22:51 +0000 | [diff] [blame] | 5567 | /// '=' assignment-expression |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5568 | /// [GNU] declaration-specifiers abstract-declarator[opt] attributes |
Richard Smith | 6ce48a7 | 2012-04-11 04:01:28 +0000 | [diff] [blame] | 5569 | /// [C++11] attribute-specifier-seq parameter-declaration |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5570 | /// |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5571 | void Parser::ParseParameterDeclarationClause( |
| 5572 | Declarator &D, |
Richard Smith | 6ce48a7 | 2012-04-11 04:01:28 +0000 | [diff] [blame] | 5573 | ParsedAttributes &FirstArgAttrs, |
Craig Topper | 6b9240e | 2013-07-05 19:34:19 +0000 | [diff] [blame] | 5574 | SmallVectorImpl<DeclaratorChunk::ParamInfo> &ParamInfo, |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5575 | SourceLocation &EllipsisLoc) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5576 | do { |
| 5577 | // FIXME: Issue a diagnostic if we parsed an attribute-specifier-seq |
| 5578 | // before deciding this was a parameter-declaration-clause. |
| 5579 | if (TryConsumeToken(tok::ellipsis, EllipsisLoc)) |
Chris Lattner | f97409f | 2008-04-06 06:57:35 +0000 | [diff] [blame] | 5580 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5581 | |
Chris Lattner | f97409f | 2008-04-06 06:57:35 +0000 | [diff] [blame] | 5582 | // Parse the declaration-specifiers. |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 5583 | // Just use the ParsingDeclaration "scope" of the declarator. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 5584 | DeclSpec DS(AttrFactory); |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5585 | |
Richard Smith | 6ce48a7 | 2012-04-11 04:01:28 +0000 | [diff] [blame] | 5586 | // Parse any C++11 attributes. |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 5587 | MaybeParseCXX11Attributes(DS.getAttributes()); |
Richard Smith | 6ce48a7 | 2012-04-11 04:01:28 +0000 | [diff] [blame] | 5588 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 5589 | // Skip any Microsoft attributes before a param. |
Chad Rosier | 16f90bf | 2012-12-20 20:37:53 +0000 | [diff] [blame] | 5590 | MaybeParseMicrosoftAttributes(DS.getAttributes()); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 5591 | |
| 5592 | SourceLocation DSStart = Tok.getLocation(); |
Chris Lattner | 7399ee0 | 2008-10-20 02:05:46 +0000 | [diff] [blame] | 5593 | |
| 5594 | // If the caller parsed attributes for the first argument, add them now. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 5595 | // Take them so that we only apply the attributes to the first parameter. |
Douglas Gregor | 3fd1ba0 | 2011-07-05 16:44:18 +0000 | [diff] [blame] | 5596 | // FIXME: If we can leave the attributes in the token stream somehow, we can |
Richard Smith | 6ce48a7 | 2012-04-11 04:01:28 +0000 | [diff] [blame] | 5597 | // get rid of a parameter (FirstArgAttrs) and this statement. It might be |
| 5598 | // too much hassle. |
| 5599 | DS.takeAttributesFrom(FirstArgAttrs); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 5600 | |
Chris Lattner | e64c549 | 2009-02-27 18:38:20 +0000 | [diff] [blame] | 5601 | ParseDeclarationSpecifiers(DS); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5602 | |
Faisal Vali | fad9e13 | 2013-09-26 19:54:12 +0000 | [diff] [blame] | 5603 | |
| 5604 | // Parse the declarator. This is "PrototypeContext" or |
| 5605 | // "LambdaExprParameterContext", because we must accept either |
| 5606 | // 'declarator' or 'abstract-declarator' here. |
| 5607 | Declarator ParmDeclarator(DS, |
| 5608 | D.getContext() == Declarator::LambdaExprContext ? |
| 5609 | Declarator::LambdaExprParameterContext : |
| 5610 | Declarator::PrototypeContext); |
| 5611 | ParseDeclarator(ParmDeclarator); |
Chris Lattner | f97409f | 2008-04-06 06:57:35 +0000 | [diff] [blame] | 5612 | |
| 5613 | // Parse GNU attributes, if present. |
Faisal Vali | fad9e13 | 2013-09-26 19:54:12 +0000 | [diff] [blame] | 5614 | MaybeParseGNUAttributes(ParmDeclarator); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5615 | |
Chris Lattner | f97409f | 2008-04-06 06:57:35 +0000 | [diff] [blame] | 5616 | // Remember this parsed parameter in ParamInfo. |
Faisal Vali | fad9e13 | 2013-09-26 19:54:12 +0000 | [diff] [blame] | 5617 | IdentifierInfo *ParmII = ParmDeclarator.getIdentifier(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5618 | |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5619 | // DefArgToks is used when the parsing of default arguments needs |
| 5620 | // to be delayed. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5621 | CachedTokens *DefArgToks = nullptr; |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5622 | |
Chris Lattner | f97409f | 2008-04-06 06:57:35 +0000 | [diff] [blame] | 5623 | // If no parameter was specified, verify that *something* was specified, |
| 5624 | // otherwise we have a missing type and identifier. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5625 | if (DS.isEmpty() && ParmDeclarator.getIdentifier() == nullptr && |
Faisal Vali | fad9e13 | 2013-09-26 19:54:12 +0000 | [diff] [blame] | 5626 | ParmDeclarator.getNumTypeObjects() == 0) { |
Chris Lattner | f97409f | 2008-04-06 06:57:35 +0000 | [diff] [blame] | 5627 | // Completely missing, emit error. |
| 5628 | Diag(DSStart, diag::err_missing_param); |
| 5629 | } else { |
| 5630 | // Otherwise, we have something. Add it and let semantic analysis try |
| 5631 | // to grok it and add the result to the ParamInfo we are building. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5632 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5633 | // Last chance to recover from a misplaced ellipsis in an attempted |
| 5634 | // parameter pack declaration. |
| 5635 | if (Tok.is(tok::ellipsis) && |
| 5636 | (NextToken().isNot(tok::r_paren) || |
| 5637 | (!ParmDeclarator.getEllipsisLoc().isValid() && |
| 5638 | !Actions.isUnexpandedParameterPackPermitted())) && |
| 5639 | Actions.containsUnexpandedParameterPacks(ParmDeclarator)) |
| 5640 | DiagnoseMisplacedEllipsisInDeclarator(ConsumeToken(), ParmDeclarator); |
| 5641 | |
Chris Lattner | f97409f | 2008-04-06 06:57:35 +0000 | [diff] [blame] | 5642 | // Inform the actions module about the parameter declarator, so it gets |
| 5643 | // added to the current scope. |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5644 | Decl *Param = Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 5645 | // Parse the default argument, if any. We parse the default |
| 5646 | // arguments in all dialects; the semantic analysis in |
| 5647 | // ActOnParamDefaultArgument will reject the default argument in |
| 5648 | // C. |
| 5649 | if (Tok.is(tok::equal)) { |
Douglas Gregor | 61366e9 | 2008-12-24 00:01:03 +0000 | [diff] [blame] | 5650 | SourceLocation EqualLoc = Tok.getLocation(); |
| 5651 | |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 5652 | // Parse the default argument |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5653 | if (D.getContext() == Declarator::MemberContext) { |
| 5654 | // If we're inside a class definition, cache the tokens |
| 5655 | // corresponding to the default argument. We'll actually parse |
| 5656 | // them when we see the end of the class definition. |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5657 | // FIXME: Can we use a smart pointer for Toks? |
| 5658 | DefArgToks = new CachedTokens; |
| 5659 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 5660 | SourceLocation ArgStartLoc = NextToken().getLocation(); |
Richard Smith | 9bd3cdc | 2013-09-12 23:28:08 +0000 | [diff] [blame] | 5661 | if (!ConsumeAndStoreInitializer(*DefArgToks, CIK_DefaultArgument)) { |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5662 | delete DefArgToks; |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5663 | DefArgToks = nullptr; |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5664 | Actions.ActOnParamDefaultArgumentError(Param, EqualLoc); |
Argyrios Kyrtzidis | 2b602ad | 2010-08-06 09:47:24 +0000 | [diff] [blame] | 5665 | } else { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5666 | Actions.ActOnParamUnparsedDefaultArgument(Param, EqualLoc, |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 5667 | ArgStartLoc); |
Argyrios Kyrtzidis | 2b602ad | 2010-08-06 09:47:24 +0000 | [diff] [blame] | 5668 | } |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 5669 | } else { |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5670 | // Consume the '='. |
Douglas Gregor | 61366e9 | 2008-12-24 00:01:03 +0000 | [diff] [blame] | 5671 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5672 | |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 5673 | // The argument isn't actually potentially evaluated unless it is |
Douglas Gregor | be0f7bd | 2010-09-11 20:24:53 +0000 | [diff] [blame] | 5674 | // used. |
| 5675 | EnterExpressionEvaluationContext Eval(Actions, |
Douglas Gregor | ccc1b5e | 2012-02-21 00:37:24 +0000 | [diff] [blame] | 5676 | Sema::PotentiallyEvaluatedIfUsed, |
| 5677 | Param); |
Douglas Gregor | be0f7bd | 2010-09-11 20:24:53 +0000 | [diff] [blame] | 5678 | |
Sebastian Redl | 84407ba | 2012-03-14 15:54:00 +0000 | [diff] [blame] | 5679 | ExprResult DefArgResult; |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 5680 | if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace)) { |
Sebastian Redl | 3e280b5 | 2012-03-18 22:25:45 +0000 | [diff] [blame] | 5681 | Diag(Tok, diag::warn_cxx98_compat_generalized_initializer_lists); |
Sebastian Redl | 84407ba | 2012-03-14 15:54:00 +0000 | [diff] [blame] | 5682 | DefArgResult = ParseBraceInitializer(); |
Sebastian Redl | 3e280b5 | 2012-03-18 22:25:45 +0000 | [diff] [blame] | 5683 | } else |
Sebastian Redl | 84407ba | 2012-03-14 15:54:00 +0000 | [diff] [blame] | 5684 | DefArgResult = ParseAssignmentExpression(); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5685 | DefArgResult = Actions.CorrectDelayedTyposInExpr(DefArgResult); |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5686 | if (DefArgResult.isInvalid()) { |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5687 | Actions.ActOnParamDefaultArgumentError(Param, EqualLoc); |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 5688 | SkipUntil(tok::comma, tok::r_paren, StopAtSemi | StopBeforeMatch); |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5689 | } else { |
| 5690 | // Inform the actions module about the default argument |
| 5691 | Actions.ActOnParamDefaultArgument(Param, EqualLoc, |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5692 | DefArgResult.get()); |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 5693 | } |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 5694 | } |
| 5695 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5696 | |
| 5697 | ParamInfo.push_back(DeclaratorChunk::ParamInfo(ParmII, |
Faisal Vali | fad9e13 | 2013-09-26 19:54:12 +0000 | [diff] [blame] | 5698 | ParmDeclarator.getIdentifierLoc(), |
| 5699 | Param, DefArgToks)); |
Chris Lattner | f97409f | 2008-04-06 06:57:35 +0000 | [diff] [blame] | 5700 | } |
| 5701 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5702 | if (TryConsumeToken(tok::ellipsis, EllipsisLoc)) { |
| 5703 | if (!getLangOpts().CPlusPlus) { |
| 5704 | // We have ellipsis without a preceding ',', which is ill-formed |
| 5705 | // in C. Complain and provide the fix. |
| 5706 | Diag(EllipsisLoc, diag::err_missing_comma_before_ellipsis) |
| 5707 | << FixItHint::CreateInsertion(EllipsisLoc, ", "); |
| 5708 | } else if (ParmDeclarator.getEllipsisLoc().isValid() || |
| 5709 | Actions.containsUnexpandedParameterPacks(ParmDeclarator)) { |
| 5710 | // It looks like this was supposed to be a parameter pack. Warn and |
| 5711 | // point out where the ellipsis should have gone. |
| 5712 | SourceLocation ParmEllipsis = ParmDeclarator.getEllipsisLoc(); |
| 5713 | Diag(EllipsisLoc, diag::warn_misplaced_ellipsis_vararg) |
| 5714 | << ParmEllipsis.isValid() << ParmEllipsis; |
| 5715 | if (ParmEllipsis.isValid()) { |
| 5716 | Diag(ParmEllipsis, |
| 5717 | diag::note_misplaced_ellipsis_vararg_existing_ellipsis); |
| 5718 | } else { |
| 5719 | Diag(ParmDeclarator.getIdentifierLoc(), |
| 5720 | diag::note_misplaced_ellipsis_vararg_add_ellipsis) |
| 5721 | << FixItHint::CreateInsertion(ParmDeclarator.getIdentifierLoc(), |
| 5722 | "...") |
| 5723 | << !ParmDeclarator.hasName(); |
| 5724 | } |
| 5725 | Diag(EllipsisLoc, diag::note_misplaced_ellipsis_vararg_add_comma) |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5726 | << FixItHint::CreateInsertion(EllipsisLoc, ", "); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5727 | } |
| 5728 | |
| 5729 | // We can't have any more parameters after an ellipsis. |
Douglas Gregor | ed5d651 | 2009-09-22 21:41:40 +0000 | [diff] [blame] | 5730 | break; |
| 5731 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5732 | |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5733 | // If the next token is a comma, consume it and keep reading arguments. |
| 5734 | } while (TryConsumeToken(tok::comma)); |
Chris Lattner | 66d2865 | 2008-04-06 06:34:08 +0000 | [diff] [blame] | 5735 | } |
Chris Lattner | ef4715c | 2008-04-06 05:45:57 +0000 | [diff] [blame] | 5736 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5737 | /// [C90] direct-declarator '[' constant-expression[opt] ']' |
| 5738 | /// [C99] direct-declarator '[' type-qual-list[opt] assignment-expr[opt] ']' |
| 5739 | /// [C99] direct-declarator '[' 'static' type-qual-list[opt] assign-expr ']' |
| 5740 | /// [C99] direct-declarator '[' type-qual-list 'static' assignment-expr ']' |
| 5741 | /// [C99] direct-declarator '[' type-qual-list[opt] '*' ']' |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5742 | /// [C++11] direct-declarator '[' constant-expression[opt] ']' |
| 5743 | /// attribute-specifier-seq[opt] |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5744 | void Parser::ParseBracketDeclarator(Declarator &D) { |
Richard Smith | 6ee326a | 2012-04-10 01:32:12 +0000 | [diff] [blame] | 5745 | if (CheckProhibitedCXX11Attribute()) |
| 5746 | return; |
| 5747 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5748 | BalancedDelimiterTracker T(*this, tok::l_square); |
| 5749 | T.consumeOpen(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5750 | |
Chris Lattner | 378c7e4 | 2008-12-18 07:27:21 +0000 | [diff] [blame] | 5751 | // C array syntax has many features, but by-far the most common is [] and [4]. |
| 5752 | // This code does a fast path to handle some of the most obvious cases. |
| 5753 | if (Tok.getKind() == tok::r_square) { |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5754 | T.consumeClose(); |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 5755 | ParsedAttributes attrs(AttrFactory); |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 5756 | MaybeParseCXX11Attributes(attrs); |
Chad Rosier | 8decdee | 2012-06-26 22:30:43 +0000 | [diff] [blame] | 5757 | |
Chris Lattner | 378c7e4 | 2008-12-18 07:27:21 +0000 | [diff] [blame] | 5758 | // Remember that we parsed the empty array type. |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5759 | D.AddTypeInfo(DeclaratorChunk::getArray(0, false, false, nullptr, |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5760 | T.getOpenLocation(), |
| 5761 | T.getCloseLocation()), |
| 5762 | attrs, T.getCloseLocation()); |
Chris Lattner | 378c7e4 | 2008-12-18 07:27:21 +0000 | [diff] [blame] | 5763 | return; |
| 5764 | } else if (Tok.getKind() == tok::numeric_constant && |
| 5765 | GetLookAheadToken(1).is(tok::r_square)) { |
| 5766 | // [4] is very common. Parse the numeric constant expression. |
Richard Smith | 36f5cfe | 2012-03-09 08:00:36 +0000 | [diff] [blame] | 5767 | ExprResult ExprRes(Actions.ActOnNumericConstant(Tok, getCurScope())); |
Chris Lattner | 378c7e4 | 2008-12-18 07:27:21 +0000 | [diff] [blame] | 5768 | ConsumeToken(); |
| 5769 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5770 | T.consumeClose(); |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 5771 | ParsedAttributes attrs(AttrFactory); |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 5772 | MaybeParseCXX11Attributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5773 | |
Chris Lattner | 378c7e4 | 2008-12-18 07:27:21 +0000 | [diff] [blame] | 5774 | // Remember that we parsed a array type, and remember its features. |
Nikola Smiljanic | ebf0fa8 | 2013-01-11 08:33:05 +0000 | [diff] [blame] | 5775 | D.AddTypeInfo(DeclaratorChunk::getArray(0, false, false, |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5776 | ExprRes.get(), |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5777 | T.getOpenLocation(), |
| 5778 | T.getCloseLocation()), |
| 5779 | attrs, T.getCloseLocation()); |
Chris Lattner | 378c7e4 | 2008-12-18 07:27:21 +0000 | [diff] [blame] | 5780 | return; |
| 5781 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5782 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5783 | // If valid, this location is the position where we read the 'static' keyword. |
| 5784 | SourceLocation StaticLoc; |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5785 | TryConsumeToken(tok::kw_static, StaticLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5786 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5787 | // If there is a type-qualifier-list, read it now. |
Chris Lattner | a1fcbad | 2008-12-18 06:50:14 +0000 | [diff] [blame] | 5788 | // Type qualifiers in an array subscript are a C99 feature. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 5789 | DeclSpec DS(AttrFactory); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5790 | ParseTypeQualifierListOpt(DS, AR_CXX11AttributesParsed); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5791 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5792 | // If we haven't already read 'static', check to see if there is one after the |
| 5793 | // type-qualifier-list. |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5794 | if (!StaticLoc.isValid()) |
| 5795 | TryConsumeToken(tok::kw_static, StaticLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5796 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5797 | // Handle "direct-declarator [ type-qual-list[opt] * ]". |
| 5798 | bool isStar = false; |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 5799 | ExprResult NumElements; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5800 | |
Chris Lattner | 5dcc6ce | 2008-04-06 05:26:30 +0000 | [diff] [blame] | 5801 | // Handle the case where we have '[*]' as the array size. However, a leading |
| 5802 | // star could be the start of an expression, for example 'X[*p + 4]'. Verify |
Sylvestre Ledru | bed28ac | 2012-07-23 08:59:39 +0000 | [diff] [blame] | 5803 | // the token after the star is a ']'. Since stars in arrays are |
Chris Lattner | 5dcc6ce | 2008-04-06 05:26:30 +0000 | [diff] [blame] | 5804 | // infrequent, use of lookahead is not costly here. |
| 5805 | if (Tok.is(tok::star) && GetLookAheadToken(1).is(tok::r_square)) { |
Chris Lattner | a711dd0 | 2008-04-06 05:27:21 +0000 | [diff] [blame] | 5806 | ConsumeToken(); // Eat the '*'. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5807 | |
Chris Lattner | a1fcbad | 2008-12-18 06:50:14 +0000 | [diff] [blame] | 5808 | if (StaticLoc.isValid()) { |
Chris Lattner | 5dcc6ce | 2008-04-06 05:26:30 +0000 | [diff] [blame] | 5809 | Diag(StaticLoc, diag::err_unspecified_vla_size_with_static); |
Chris Lattner | a1fcbad | 2008-12-18 06:50:14 +0000 | [diff] [blame] | 5810 | StaticLoc = SourceLocation(); // Drop the static. |
| 5811 | } |
Chris Lattner | 5dcc6ce | 2008-04-06 05:26:30 +0000 | [diff] [blame] | 5812 | isStar = true; |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 5813 | } else if (Tok.isNot(tok::r_square)) { |
Chris Lattner | 378c7e4 | 2008-12-18 07:27:21 +0000 | [diff] [blame] | 5814 | // Note, in C89, this production uses the constant-expr production instead |
| 5815 | // of assignment-expr. The only difference is that assignment-expr allows |
| 5816 | // things like '=' and '*='. Sema rejects these in C89 mode because they |
| 5817 | // are not i-c-e's, so we don't need to distinguish between the two here. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5818 | |
Douglas Gregor | e0762c9 | 2009-06-19 23:52:42 +0000 | [diff] [blame] | 5819 | // Parse the constant-expression or assignment-expression now (depending |
| 5820 | // on dialect). |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 5821 | if (getLangOpts().CPlusPlus) { |
Douglas Gregor | e0762c9 | 2009-06-19 23:52:42 +0000 | [diff] [blame] | 5822 | NumElements = ParseConstantExpression(); |
Eli Friedman | 71b8fb5 | 2012-01-21 01:01:51 +0000 | [diff] [blame] | 5823 | } else { |
| 5824 | EnterExpressionEvaluationContext Unevaluated(Actions, |
| 5825 | Sema::ConstantEvaluated); |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 5826 | NumElements = |
| 5827 | Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression()); |
Eli Friedman | 71b8fb5 | 2012-01-21 01:01:51 +0000 | [diff] [blame] | 5828 | } |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 5829 | } else { |
| 5830 | if (StaticLoc.isValid()) { |
| 5831 | Diag(StaticLoc, diag::err_unspecified_size_with_static); |
| 5832 | StaticLoc = SourceLocation(); // Drop the static. |
| 5833 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5834 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5835 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5836 | // If there was an error parsing the assignment-expression, recover. |
Sebastian Redl | 0e9eabc | 2008-12-09 13:15:23 +0000 | [diff] [blame] | 5837 | if (NumElements.isInvalid()) { |
Chris Lattner | 5cb10d3 | 2009-04-24 22:30:50 +0000 | [diff] [blame] | 5838 | D.setInvalidType(true); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5839 | // If the expression was invalid, skip it. |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 5840 | SkipUntil(tok::r_square, StopAtSemi); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5841 | return; |
| 5842 | } |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 5843 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5844 | T.consumeClose(); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 5845 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 5846 | ParsedAttributes attrs(AttrFactory); |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 5847 | MaybeParseCXX11Attributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 5848 | |
Chris Lattner | 378c7e4 | 2008-12-18 07:27:21 +0000 | [diff] [blame] | 5849 | // Remember that we parsed a array type, and remember its features. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 5850 | D.AddTypeInfo(DeclaratorChunk::getArray(DS.getTypeQualifiers(), |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5851 | StaticLoc.isValid(), isStar, |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5852 | NumElements.get(), |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 5853 | T.getOpenLocation(), |
| 5854 | T.getCloseLocation()), |
| 5855 | attrs, T.getCloseLocation()); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 5856 | } |
| 5857 | |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 5858 | /// Diagnose brackets before an identifier. |
| 5859 | void Parser::ParseMisplacedBracketDeclarator(Declarator &D) { |
| 5860 | assert(Tok.is(tok::l_square) && "Missing opening bracket"); |
| 5861 | assert(!D.mayOmitIdentifier() && "Declarator cannot omit identifier"); |
| 5862 | |
| 5863 | SourceLocation StartBracketLoc = Tok.getLocation(); |
| 5864 | Declarator TempDeclarator(D.getDeclSpec(), D.getContext()); |
| 5865 | |
| 5866 | while (Tok.is(tok::l_square)) { |
| 5867 | ParseBracketDeclarator(TempDeclarator); |
| 5868 | } |
| 5869 | |
| 5870 | // Stuff the location of the start of the brackets into the Declarator. |
| 5871 | // The diagnostics from ParseDirectDeclarator will make more sense if |
| 5872 | // they use this location instead. |
| 5873 | if (Tok.is(tok::semi)) |
| 5874 | D.getName().EndLocation = StartBracketLoc; |
| 5875 | |
| 5876 | SourceLocation SuggestParenLoc = Tok.getLocation(); |
| 5877 | |
| 5878 | // Now that the brackets are removed, try parsing the declarator again. |
| 5879 | ParseDeclaratorInternal(D, &Parser::ParseDirectDeclarator); |
| 5880 | |
| 5881 | // Something went wrong parsing the brackets, in which case, |
| 5882 | // ParseBracketDeclarator has emitted an error, and we don't need to emit |
| 5883 | // one here. |
| 5884 | if (TempDeclarator.getNumTypeObjects() == 0) |
| 5885 | return; |
| 5886 | |
| 5887 | // Determine if parens will need to be suggested in the diagnostic. |
| 5888 | bool NeedParens = false; |
| 5889 | if (D.getNumTypeObjects() != 0) { |
| 5890 | switch (D.getTypeObject(D.getNumTypeObjects() - 1).Kind) { |
| 5891 | case DeclaratorChunk::Pointer: |
| 5892 | case DeclaratorChunk::Reference: |
| 5893 | case DeclaratorChunk::BlockPointer: |
| 5894 | case DeclaratorChunk::MemberPointer: |
| 5895 | NeedParens = true; |
| 5896 | break; |
| 5897 | case DeclaratorChunk::Array: |
| 5898 | case DeclaratorChunk::Function: |
| 5899 | case DeclaratorChunk::Paren: |
| 5900 | break; |
| 5901 | } |
| 5902 | } |
| 5903 | |
| 5904 | if (NeedParens) { |
| 5905 | // Create a DeclaratorChunk for the inserted parens. |
| 5906 | ParsedAttributes attrs(AttrFactory); |
| 5907 | SourceLocation EndLoc = PP.getLocForEndOfToken(D.getLocEnd()); |
| 5908 | D.AddTypeInfo(DeclaratorChunk::getParen(SuggestParenLoc, EndLoc), attrs, |
| 5909 | SourceLocation()); |
| 5910 | } |
| 5911 | |
| 5912 | // Adding back the bracket info to the end of the Declarator. |
| 5913 | for (unsigned i = 0, e = TempDeclarator.getNumTypeObjects(); i < e; ++i) { |
| 5914 | const DeclaratorChunk &Chunk = TempDeclarator.getTypeObject(i); |
| 5915 | ParsedAttributes attrs(AttrFactory); |
| 5916 | attrs.set(Chunk.Common.AttrList); |
| 5917 | D.AddTypeInfo(Chunk, attrs, SourceLocation()); |
| 5918 | } |
| 5919 | |
| 5920 | // The missing identifier would have been diagnosed in ParseDirectDeclarator. |
| 5921 | // If parentheses are required, always suggest them. |
| 5922 | if (!D.getIdentifier() && !NeedParens) |
| 5923 | return; |
| 5924 | |
| 5925 | SourceLocation EndBracketLoc = TempDeclarator.getLocEnd(); |
| 5926 | |
| 5927 | // Generate the move bracket error message. |
| 5928 | SourceRange BracketRange(StartBracketLoc, EndBracketLoc); |
| 5929 | SourceLocation EndLoc = PP.getLocForEndOfToken(D.getLocEnd()); |
| 5930 | |
| 5931 | if (NeedParens) { |
| 5932 | Diag(EndLoc, diag::err_brackets_go_after_unqualified_id) |
| 5933 | << getLangOpts().CPlusPlus |
| 5934 | << FixItHint::CreateInsertion(SuggestParenLoc, "(") |
| 5935 | << FixItHint::CreateInsertion(EndLoc, ")") |
| 5936 | << FixItHint::CreateInsertionFromRange( |
| 5937 | EndLoc, CharSourceRange(BracketRange, true)) |
| 5938 | << FixItHint::CreateRemoval(BracketRange); |
| 5939 | } else { |
| 5940 | Diag(EndLoc, diag::err_brackets_go_after_unqualified_id) |
| 5941 | << getLangOpts().CPlusPlus |
| 5942 | << FixItHint::CreateInsertionFromRange( |
| 5943 | EndLoc, CharSourceRange(BracketRange, true)) |
| 5944 | << FixItHint::CreateRemoval(BracketRange); |
| 5945 | } |
| 5946 | } |
| 5947 | |
Argyrios Kyrtzidis | 0f07203 | 2008-09-05 11:26:19 +0000 | [diff] [blame] | 5948 | /// [GNU] typeof-specifier: |
| 5949 | /// typeof ( expressions ) |
| 5950 | /// typeof ( type-name ) |
| 5951 | /// [GNU/C++] typeof unary-expression |
Steve Naroff | d1861fd | 2007-07-31 12:34:36 +0000 | [diff] [blame] | 5952 | /// |
| 5953 | void Parser::ParseTypeofSpecifier(DeclSpec &DS) { |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 5954 | assert(Tok.is(tok::kw_typeof) && "Not a typeof specifier"); |
Argyrios Kyrtzidis | 5ab0640 | 2009-05-22 10:22:50 +0000 | [diff] [blame] | 5955 | Token OpTok = Tok; |
Steve Naroff | d1861fd | 2007-07-31 12:34:36 +0000 | [diff] [blame] | 5956 | SourceLocation StartLoc = ConsumeToken(); |
| 5957 | |
John McCall | cfb708c | 2010-01-13 20:03:27 +0000 | [diff] [blame] | 5958 | const bool hasParens = Tok.is(tok::l_paren); |
| 5959 | |
Eli Friedman | 80bfa3d | 2012-09-26 04:34:21 +0000 | [diff] [blame] | 5960 | EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated, |
| 5961 | Sema::ReuseLambdaContextDecl); |
Eli Friedman | 71b8fb5 | 2012-01-21 01:01:51 +0000 | [diff] [blame] | 5962 | |
Argyrios Kyrtzidis | 5ab0640 | 2009-05-22 10:22:50 +0000 | [diff] [blame] | 5963 | bool isCastExpr; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 5964 | ParsedType CastTy; |
Argyrios Kyrtzidis | 5ab0640 | 2009-05-22 10:22:50 +0000 | [diff] [blame] | 5965 | SourceRange CastRange; |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 5966 | ExprResult Operand = Actions.CorrectDelayedTyposInExpr( |
| 5967 | ParseExprAfterUnaryExprOrTypeTrait(OpTok, isCastExpr, CastTy, CastRange)); |
John McCall | cfb708c | 2010-01-13 20:03:27 +0000 | [diff] [blame] | 5968 | if (hasParens) |
| 5969 | DS.setTypeofParensRange(CastRange); |
Argyrios Kyrtzidis | 5ab0640 | 2009-05-22 10:22:50 +0000 | [diff] [blame] | 5970 | |
| 5971 | if (CastRange.getEnd().isInvalid()) |
Argyrios Kyrtzidis | 6409625 | 2009-05-22 10:22:18 +0000 | [diff] [blame] | 5972 | // FIXME: Not accurate, the range gets one token more than it should. |
| 5973 | DS.SetRangeEnd(Tok.getLocation()); |
Argyrios Kyrtzidis | 5ab0640 | 2009-05-22 10:22:50 +0000 | [diff] [blame] | 5974 | else |
| 5975 | DS.SetRangeEnd(CastRange.getEnd()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5976 | |
Argyrios Kyrtzidis | 5ab0640 | 2009-05-22 10:22:50 +0000 | [diff] [blame] | 5977 | if (isCastExpr) { |
| 5978 | if (!CastTy) { |
| 5979 | DS.SetTypeSpecError(); |
Argyrios Kyrtzidis | 0f07203 | 2008-09-05 11:26:19 +0000 | [diff] [blame] | 5980 | return; |
Douglas Gregor | 809070a | 2009-02-18 17:45:20 +0000 | [diff] [blame] | 5981 | } |
Argyrios Kyrtzidis | 0f07203 | 2008-09-05 11:26:19 +0000 | [diff] [blame] | 5982 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 5983 | const char *PrevSpec = nullptr; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 5984 | unsigned DiagID; |
Argyrios Kyrtzidis | 5ab0640 | 2009-05-22 10:22:50 +0000 | [diff] [blame] | 5985 | // Check for duplicate type specifiers (e.g. "int typeof(int)"). |
| 5986 | if (DS.SetTypeSpecType(DeclSpec::TST_typeofType, StartLoc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 5987 | DiagID, CastTy, |
| 5988 | Actions.getASTContext().getPrintingPolicy())) |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 5989 | Diag(StartLoc, DiagID) << PrevSpec; |
Argyrios Kyrtzidis | 5ab0640 | 2009-05-22 10:22:50 +0000 | [diff] [blame] | 5990 | return; |
Argyrios Kyrtzidis | 6409625 | 2009-05-22 10:22:18 +0000 | [diff] [blame] | 5991 | } |
Argyrios Kyrtzidis | 0f07203 | 2008-09-05 11:26:19 +0000 | [diff] [blame] | 5992 | |
Argyrios Kyrtzidis | 6409625 | 2009-05-22 10:22:18 +0000 | [diff] [blame] | 5993 | // If we get here, the operand to the typeof was an expresion. |
| 5994 | if (Operand.isInvalid()) { |
| 5995 | DS.SetTypeSpecError(); |
Steve Naroff | 9dfa7b4 | 2007-08-02 02:53:48 +0000 | [diff] [blame] | 5996 | return; |
Steve Naroff | d1861fd | 2007-07-31 12:34:36 +0000 | [diff] [blame] | 5997 | } |
Argyrios Kyrtzidis | 0f07203 | 2008-09-05 11:26:19 +0000 | [diff] [blame] | 5998 | |
Eli Friedman | 71b8fb5 | 2012-01-21 01:01:51 +0000 | [diff] [blame] | 5999 | // We might need to transform the operand if it is potentially evaluated. |
| 6000 | Operand = Actions.HandleExprEvaluationContextForTypeof(Operand.get()); |
| 6001 | if (Operand.isInvalid()) { |
| 6002 | DS.SetTypeSpecError(); |
| 6003 | return; |
| 6004 | } |
| 6005 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 6006 | const char *PrevSpec = nullptr; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 6007 | unsigned DiagID; |
Argyrios Kyrtzidis | 6409625 | 2009-05-22 10:22:18 +0000 | [diff] [blame] | 6008 | // Check for duplicate type specifiers (e.g. "int typeof(int)"). |
| 6009 | if (DS.SetTypeSpecType(DeclSpec::TST_typeofExpr, StartLoc, PrevSpec, |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 6010 | DiagID, Operand.get(), |
| 6011 | Actions.getASTContext().getPrintingPolicy())) |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 6012 | Diag(StartLoc, DiagID) << PrevSpec; |
Steve Naroff | d1861fd | 2007-07-31 12:34:36 +0000 | [diff] [blame] | 6013 | } |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6014 | |
Benjamin Kramer | ffbe9b9 | 2011-12-23 17:00:35 +0000 | [diff] [blame] | 6015 | /// [C11] atomic-specifier: |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6016 | /// _Atomic ( type-name ) |
| 6017 | /// |
| 6018 | void Parser::ParseAtomicSpecifier(DeclSpec &DS) { |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 6019 | assert(Tok.is(tok::kw__Atomic) && NextToken().is(tok::l_paren) && |
| 6020 | "Not an atomic specifier"); |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6021 | |
| 6022 | SourceLocation StartLoc = ConsumeToken(); |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 6023 | BalancedDelimiterTracker T(*this, tok::l_paren); |
Richard Smith | 4cf4a5e | 2013-03-28 01:55:44 +0000 | [diff] [blame] | 6024 | if (T.consumeOpen()) |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6025 | return; |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6026 | |
| 6027 | TypeResult Result = ParseTypeName(); |
| 6028 | if (Result.isInvalid()) { |
Alexey Bataev | 8fe2475 | 2013-11-18 08:17:37 +0000 | [diff] [blame] | 6029 | SkipUntil(tok::r_paren, StopAtSemi); |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6030 | return; |
| 6031 | } |
| 6032 | |
| 6033 | // Match the ')' |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 6034 | T.consumeClose(); |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6035 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 6036 | if (T.getCloseLocation().isInvalid()) |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6037 | return; |
| 6038 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 6039 | DS.setTypeofParensRange(T.getRange()); |
| 6040 | DS.SetRangeEnd(T.getCloseLocation()); |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6041 | |
Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 6042 | const char *PrevSpec = nullptr; |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6043 | unsigned DiagID; |
| 6044 | if (DS.SetTypeSpecType(DeclSpec::TST_atomic, StartLoc, PrevSpec, |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 6045 | DiagID, Result.get(), |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 6046 | Actions.getASTContext().getPrintingPolicy())) |
Eli Friedman | b001de7 | 2011-10-06 23:00:33 +0000 | [diff] [blame] | 6047 | Diag(StartLoc, DiagID) << PrevSpec; |
| 6048 | } |
| 6049 | |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6050 | |
| 6051 | /// TryAltiVecVectorTokenOutOfLine - Out of line body that should only be called |
| 6052 | /// from TryAltiVecVectorToken. |
| 6053 | bool Parser::TryAltiVecVectorTokenOutOfLine() { |
| 6054 | Token Next = NextToken(); |
| 6055 | switch (Next.getKind()) { |
| 6056 | default: return false; |
| 6057 | case tok::kw_short: |
| 6058 | case tok::kw_long: |
| 6059 | case tok::kw_signed: |
| 6060 | case tok::kw_unsigned: |
| 6061 | case tok::kw_void: |
| 6062 | case tok::kw_char: |
| 6063 | case tok::kw_int: |
| 6064 | case tok::kw_float: |
| 6065 | case tok::kw_double: |
| 6066 | case tok::kw_bool: |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 6067 | case tok::kw___bool: |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6068 | case tok::kw___pixel: |
| 6069 | Tok.setKind(tok::kw___vector); |
| 6070 | return true; |
| 6071 | case tok::identifier: |
| 6072 | if (Next.getIdentifierInfo() == Ident_pixel) { |
| 6073 | Tok.setKind(tok::kw___vector); |
| 6074 | return true; |
| 6075 | } |
Bill Schmidt | 3e3d20b | 2013-07-03 20:54:09 +0000 | [diff] [blame] | 6076 | if (Next.getIdentifierInfo() == Ident_bool) { |
| 6077 | Tok.setKind(tok::kw___vector); |
| 6078 | return true; |
| 6079 | } |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6080 | return false; |
| 6081 | } |
| 6082 | } |
| 6083 | |
| 6084 | bool Parser::TryAltiVecTokenOutOfLine(DeclSpec &DS, SourceLocation Loc, |
| 6085 | const char *&PrevSpec, unsigned &DiagID, |
| 6086 | bool &isInvalid) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 6087 | const PrintingPolicy &Policy = Actions.getASTContext().getPrintingPolicy(); |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6088 | if (Tok.getIdentifierInfo() == Ident_vector) { |
| 6089 | Token Next = NextToken(); |
| 6090 | switch (Next.getKind()) { |
| 6091 | case tok::kw_short: |
| 6092 | case tok::kw_long: |
| 6093 | case tok::kw_signed: |
| 6094 | case tok::kw_unsigned: |
| 6095 | case tok::kw_void: |
| 6096 | case tok::kw_char: |
| 6097 | case tok::kw_int: |
| 6098 | case tok::kw_float: |
| 6099 | case tok::kw_double: |
| 6100 | case tok::kw_bool: |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 6101 | case tok::kw___bool: |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6102 | case tok::kw___pixel: |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 6103 | isInvalid = DS.SetTypeAltiVecVector(true, Loc, PrevSpec, DiagID, Policy); |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6104 | return true; |
| 6105 | case tok::identifier: |
| 6106 | if (Next.getIdentifierInfo() == Ident_pixel) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 6107 | isInvalid = DS.SetTypeAltiVecVector(true, Loc, PrevSpec, DiagID,Policy); |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6108 | return true; |
| 6109 | } |
Bill Schmidt | 3e3d20b | 2013-07-03 20:54:09 +0000 | [diff] [blame] | 6110 | if (Next.getIdentifierInfo() == Ident_bool) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 6111 | isInvalid = DS.SetTypeAltiVecVector(true, Loc, PrevSpec, DiagID,Policy); |
Bill Schmidt | 3e3d20b | 2013-07-03 20:54:09 +0000 | [diff] [blame] | 6112 | return true; |
| 6113 | } |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6114 | break; |
| 6115 | default: |
| 6116 | break; |
| 6117 | } |
Douglas Gregor | a8f031f | 2010-06-16 15:28:57 +0000 | [diff] [blame] | 6118 | } else if ((Tok.getIdentifierInfo() == Ident_pixel) && |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6119 | DS.isTypeAltiVecVector()) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 6120 | isInvalid = DS.SetTypeAltiVecPixel(true, Loc, PrevSpec, DiagID, Policy); |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6121 | return true; |
Bill Schmidt | 3e3d20b | 2013-07-03 20:54:09 +0000 | [diff] [blame] | 6122 | } else if ((Tok.getIdentifierInfo() == Ident_bool) && |
| 6123 | DS.isTypeAltiVecVector()) { |
Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 6124 | isInvalid = DS.SetTypeAltiVecBool(true, Loc, PrevSpec, DiagID, Policy); |
Bill Schmidt | 3e3d20b | 2013-07-03 20:54:09 +0000 | [diff] [blame] | 6125 | return true; |
Chris Lattner | 1b49242 | 2010-02-28 18:33:55 +0000 | [diff] [blame] | 6126 | } |
| 6127 | return false; |
| 6128 | } |